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<tr class="t-nv"><td colspan="5"> <a href="iterator.html" title="cpp/iterator"> Iterators library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="numeric.html" title="cpp/numeric"> Numerics library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="io.html" title="cpp/io"> Input/output library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="locale.html" title="cpp/locale"> Localizations library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="regex.html" title="cpp/regex"> Regular expressions library</a> <span class="t-mark-rev t-since-cxx11">(C++11)</span> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="atomic.html" title="cpp/atomic"> Atomic operations library</a> <span class="t-mark-rev t-since-cxx11">(C++11)</span> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="thread.html" title="cpp/thread"> Thread support library</a> <span class="t-mark-rev t-since-cxx11">(C++11)</span> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="experimental.html" title="cpp/experimental"> Technical Specifications</a> </td></tr>
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<tr class="t-nv"><td colspan="5"> <strong class="selflink"> Type support</strong> (basic types, RTTI, type traits) </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="memory.html" title="cpp/memory"> Dynamic memory management</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="error.html" title="cpp/error"> Error handling</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="utility/program.html" title="cpp/utility/program"> Program utilities</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="utility/variadic.html" title="cpp/utility/variadic"> Variadic functions</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="chrono.html" title="cpp/chrono"> Date and time</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="utility/functional.html" title="cpp/utility/functional"> Function objects</a> </td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="utility/initializer_list.html" title="cpp/utility/initializer list"><span class="t-lines"><span>initializer_list</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="utility/bitset.html" title="cpp/utility/bitset"><span class="t-lines"><span>bitset</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="utility/hash.html" title="cpp/utility/hash"><span class="t-lines"><span>hash</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Relational operators</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="utility/rel_ops/operator_cmp.html" title="cpp/utility/rel ops/operator cmp"><span class="t-lines"><span>rel_ops::operator!=</span><span>rel_ops::operator></span><span>rel_ops::operator<=</span><span>rel_ops::operator>=</span></span></a></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Pairs and tuples</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="utility/pair.html" title="cpp/utility/pair"><span class="t-lines"><span>pair</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="utility/tuple.html" title="cpp/utility/tuple"><span class="t-lines"><span>tuple</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="utility/piecewise_construct_t.html" title="cpp/utility/piecewise construct t"><span class="t-lines"><span>piecewise_construct_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="utility/piecewise_construct.html" title="cpp/utility/piecewise construct"><span class="t-lines"><span>piecewise_construct</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="utility/integer_sequence.html" title="cpp/utility/integer sequence"><span class="t-lines"><span>integer_sequence</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Swap, forward and move</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="algorithm/swap.html" title="cpp/algorithm/swap"><span class="t-lines"><span>swap</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="utility/exchange.html" title="cpp/utility/exchange"><span class="t-lines"><span>exchange</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="utility/forward.html" title="cpp/utility/forward"><span class="t-lines"><span>forward</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="utility/move.html" title="cpp/utility/move"><span class="t-lines"><span>move</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="utility/move_if_noexcept.html" title="cpp/utility/move if noexcept"><span class="t-lines"><span>move_if_noexcept</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Type operations</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="utility/declval.html" title="cpp/utility/declval"><span class="t-lines"><span>declval</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="utility/as_const.html" title="cpp/utility/as const"><span class="t-lines"><span>as_const</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div></div></td></tr>
</table></div><div><span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/utility/navbar_content&action=edit">[edit]</a></span></div></div></div></div><div class="t-navbar-sep"> </div><div class="t-navbar-head"><strong class="selflink"> Type support</strong><div class="t-navbar-menu"><div><div style="display:inline-block; vertical-align: top;">
<div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv-h1"><td colspan="5"> Basic types</td></tr>
<tr class="t-nv"><td colspan="5"> <a href="language/types.html" title="cpp/language/types"> Fundamental types</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="types/integer.html" title="cpp/types/integer"> Fixed width integer types</a> <span class="t-mark-rev t-since-cxx11">(C++11)</span></td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/ptrdiff_t.html" title="cpp/types/ptrdiff t"><span class="t-lines"><span>ptrdiff_t</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/size_t.html" title="cpp/types/size t"><span class="t-lines"><span>size_t</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/max_align_t.html" title="cpp/types/max align t"><span class="t-lines"><span>max_align_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/nullptr_t.html" title="cpp/types/nullptr t"><span class="t-lines"><span>nullptr_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/offsetof.html" title="cpp/types/offsetof"><span class="t-lines"><span>offsetof</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/NULL.html" title="cpp/types/NULL"><span class="t-lines"><span>NULL</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> Numeric limits</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/numeric_limits.1.html" title="cpp/types/numeric limits"><span class="t-lines"><span>numeric_limits</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"> <a href="types/climits.1.html" title="cpp/types/climits">C numeric limits interface</a></td></tr>
<tr class="t-nv-h1"><td colspan="5"> Runtime type information</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/type_info.html" title="cpp/types/type info"><span class="t-lines"><span>type_info</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/type_index.html" title="cpp/types/type index"><span class="t-lines"><span>type_index</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/bad_typeid.html" title="cpp/types/bad typeid"><span class="t-lines"><span>bad_typeid</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/bad_cast.html" title="cpp/types/bad cast"><span class="t-lines"><span>bad_cast</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> Type traits</td></tr>
<tr class="t-nv-h2"><td colspan="5"> Type categories</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_void.html" title="cpp/types/is void"><span class="t-lines"><span>is_void</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_null_pointer.html" title="cpp/types/is null pointer"><span class="t-lines"><span>is_null_pointer</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_array.html" title="cpp/types/is array"><span class="t-lines"><span>is_array</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_pointer.html" title="cpp/types/is pointer"><span class="t-lines"><span>is_pointer</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_enum.html" title="cpp/types/is enum"><span class="t-lines"><span>is_enum</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_union.html" title="cpp/types/is union"><span class="t-lines"><span>is_union</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_class.html" title="cpp/types/is class"><span class="t-lines"><span>is_class</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_function.html" title="cpp/types/is function"><span class="t-lines"><span>is_function</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_object.html" title="cpp/types/is object"><span class="t-lines"><span>is_object</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_scalar.html" title="cpp/types/is scalar"><span class="t-lines"><span>is_scalar</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_compound.html" title="cpp/types/is compound"><span class="t-lines"><span>is_compound</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_integral.html" title="cpp/types/is integral"><span class="t-lines"><span>is_integral</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_floating_point.html" title="cpp/types/is floating point"><span class="t-lines"><span>is_floating_point</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_fundamental.html" title="cpp/types/is fundamental"><span class="t-lines"><span>is_fundamental</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_arithmetic.html" title="cpp/types/is arithmetic"><span class="t-lines"><span>is_arithmetic</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_reference.html" title="cpp/types/is reference"><span class="t-lines"><span>is_reference</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_lvalue_reference.html" title="cpp/types/is lvalue reference"><span class="t-lines"><span>is_lvalue_reference</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_rvalue_reference.html" title="cpp/types/is rvalue reference"><span class="t-lines"><span>is_rvalue_reference</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_member_pointer.html" title="cpp/types/is member pointer"><span class="t-lines"><span>is_member_pointer</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_member_object_pointer.html" title="cpp/types/is member object pointer"><span class="t-lines"><span>is_member_object_pointer</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_member_function_pointer.html" title="cpp/types/is member function pointer"><span class="t-lines"><span>is_member_function_pointer</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
</table></div>
<div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv-h2"><td colspan="5"> Type properties</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_const.html" title="cpp/types/is const"><span class="t-lines"><span>is_const</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_volatile.html" title="cpp/types/is volatile"><span class="t-lines"><span>is_volatile</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_pod.html" title="cpp/types/is pod"><span class="t-lines"><span>is_pod</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_empty.html" title="cpp/types/is empty"><span class="t-lines"><span>is_empty</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_polymorphic.html" title="cpp/types/is polymorphic"><span class="t-lines"><span>is_polymorphic</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_final.html" title="cpp/types/is final"><span class="t-lines"><span>is_final</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_abstract.html" title="cpp/types/is abstract"><span class="t-lines"><span>is_abstract</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_trivial.html" title="cpp/types/is trivial"><span class="t-lines"><span>is_trivial</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_trivially_copyable.html" title="cpp/types/is trivially copyable"><span class="t-lines"><span>is_trivially_copyable</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_standard_layout.html" title="cpp/types/is standard layout"><span class="t-lines"><span>is_standard_layout</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_literal_type.html" title="cpp/types/is literal type"><span class="t-lines"><span>is_literal_type</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_signed.html" title="cpp/types/is signed"><span class="t-lines"><span>is_signed</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_unsigned.html" title="cpp/types/is unsigned"><span class="t-lines"><span>is_unsigned</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Type trait constants</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/integral_constant.html" title="cpp/types/integral constant"><span class="t-lines"><span>integral_constant</span><span>bool_constant</span><span>true_type</span><span>false_type</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Metafunctions</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/conjunction.html" title="cpp/types/conjunction"><span class="t-lines"><span>conjunction</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/disjunction.html" title="cpp/types/disjunction"><span class="t-lines"><span>disjunction</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/negation.html" title="cpp/types/negation"><span class="t-lines"><span>negation</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div></div></td></tr>
</table></div>
</div>
<div style="display:inline-block; vertical-align: top;">
<div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv-h2"><td colspan="5"> Supported operations</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_constructible.html" title="cpp/types/is constructible"><span class="t-lines"><span>is_constructible</span><span>is_trivially_constructible</span><span>is_nothrow_constructible</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_default_constructible.html" title="cpp/types/is default constructible"><span class="t-lines"><span>is_default_constructible</span><span>is_trivially_default_constructible</span><span>is_nothrow_default_constructible</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_copy_constructible.html" title="cpp/types/is copy constructible"><span class="t-lines"><span>is_copy_constructible</span><span>is_trivially_copy_constructible</span><span>is_nothrow_copy_constructible</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_move_constructible.html" title="cpp/types/is move constructible"><span class="t-lines"><span>is_move_constructible</span><span>is_trivially_move_constructible</span><span>is_nothrow_move_constructible</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_assignable.html" title="cpp/types/is assignable"><span class="t-lines"><span>is_assignable</span><span>is_trivially_assignable</span><span>is_nothrow_assignable</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_copy_assignable.html" title="cpp/types/is copy assignable"><span class="t-lines"><span>is_copy_assignable</span><span>is_trivially_copy_assignable</span><span>is_nothrow_copy_assignable</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_move_assignable.html" title="cpp/types/is move assignable"><span class="t-lines"><span>is_move_assignable</span><span>is_trivially_move_assignable</span><span>is_nothrow_move_assignable</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_destructible.html" title="cpp/types/is destructible"><span class="t-lines"><span>is_destructible</span><span>is_trivially_destructible</span><span>is_nothrow_destructible</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/has_virtual_destructor.html" title="cpp/types/has virtual destructor"><span class="t-lines"><span>has_virtual_destructor</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Relationships and property queries</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_same.html" title="cpp/types/is same"><span class="t-lines"><span>is_same</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_base_of.html" title="cpp/types/is base of"><span class="t-lines"><span>is_base_of</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/is_convertible.html" title="cpp/types/is convertible"><span class="t-lines"><span>is_convertible</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/alignment_of.html" title="cpp/types/alignment of"><span class="t-lines"><span>alignment_of</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/rank.html" title="cpp/types/rank"><span class="t-lines"><span>rank</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/extent.html" title="cpp/types/extent"><span class="t-lines"><span>extent</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Type modifications</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/remove_cv.html" title="cpp/types/remove cv"><span class="t-lines"><span>remove_cv</span><span>remove_const</span><span>remove_volatile</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/add_cv.html" title="cpp/types/add cv"><span class="t-lines"><span>add_cv</span><span>add_const</span><span>add_volatile</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/make_signed.html" title="cpp/types/make signed"><span class="t-lines"><span>make_signed</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/make_unsigned.html" title="cpp/types/make unsigned"><span class="t-lines"><span>make_unsigned</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/remove_reference.html" title="cpp/types/remove reference"><span class="t-lines"><span>remove_reference</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/add_reference.html" title="cpp/types/add reference"><span class="t-lines"><span>add_lvalue_reference</span><span>add_rvalue_reference</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/remove_pointer.html" title="cpp/types/remove pointer"><span class="t-lines"><span>remove_pointer</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/add_pointer.html" title="cpp/types/add pointer"><span class="t-lines"><span>add_pointer</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/remove_extent.html" title="cpp/types/remove extent"><span class="t-lines"><span>remove_extent</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/remove_all_extents.html" title="cpp/types/remove all extents"><span class="t-lines"><span>remove_all_extents</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Type transformations</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/aligned_storage.html" title="cpp/types/aligned storage"><span class="t-lines"><span>aligned_storage</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/aligned_union.html" title="cpp/types/aligned union"><span class="t-lines"><span>aligned_union</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/decay.html" title="cpp/types/decay"><span class="t-lines"><span>decay</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/enable_if.html" title="cpp/types/enable if"><span class="t-lines"><span>enable_if</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/void_t.html" title="cpp/types/void t"><span class="t-lines"><span>void_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/conditional.html" title="cpp/types/conditional"><span class="t-lines"><span>conditional</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/common_type.html" title="cpp/types/common type"><span class="t-lines"><span>common_type</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/underlying_type.html" title="cpp/types/underlying type"><span class="t-lines"><span>underlying_type</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="types/result_of.html" title="cpp/types/result of"><span class="t-lines"><span>result_of</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
</table></div></td></tr>
</table></div>
</div><div><span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/navbar_content&action=edit">[edit]</a></span></div></div></div></div><div class="t-navbar-sep"> </div></div>
<p><small>(See also <a href="language/type-id.html" title="cpp/language/type"><tt>type</tt></a> for type system overview)</small>
</p>
<table id="toc" class="toc"><tr><td><div id="toctitle"><h2>Contents</h2></div>
<ul>
<li class="toclevel-1 tocsection-1"><a href="types.html#Basic_types"><span class="tocnumber">1</span> <span class="toctext">Basic types</span></a>
<ul>
<li class="toclevel-2 tocsection-2"><a href="types.html#Fundamental_types_defined_by_the_language"><span class="tocnumber">1.1</span> <span class="toctext">Fundamental types defined by the language</span></a></li>
<li class="toclevel-2 tocsection-3"><a href="types.html#Additional_basic_types_and_macros"><span class="tocnumber">1.2</span> <span class="toctext">Additional basic types and macros</span></a></li>
<li class="toclevel-2 tocsection-4"><a href="types.html#Fixed_width_integer_types_.28since_C.2B.2B11.29"><span class="tocnumber">1.3</span> <span class="toctext">Fixed width integer types <span>(since C++11)</span></span></a></li>
</ul>
</li>
<li class="toclevel-1 tocsection-5"><a href="types.html#Numeric_limits"><span class="tocnumber">2</span> <span class="toctext">Numeric limits</span></a>
<ul>
<li class="toclevel-2 tocsection-6"><a href="types.html#C_numeric_limits_interface"><span class="tocnumber">2.1</span> <span class="toctext">C numeric limits interface</span></a></li>
</ul>
</li>
<li class="toclevel-1 tocsection-7"><a href="types.html#Runtime_type_identification"><span class="tocnumber">3</span> <span class="toctext">Runtime type identification</span></a></li>
<li class="toclevel-1 tocsection-8"><a href="types.html#Type_traits_.28since_C.2B.2B11.29"><span class="tocnumber">4</span> <span class="toctext">Type traits <span>(since C++11)</span></span></a>
<ul>
<li class="toclevel-2 tocsection-9"><a href="types.html#Type_properties"><span class="tocnumber">4.1</span> <span class="toctext">Type properties</span></a>
<ul>
<li class="toclevel-3"><a href="types.html#Primary_type_categories"><span class="tocnumber">4.1.1</span> <span class="toctext">Primary type categories</span></a></li>
<li class="toclevel-3"><a href="types.html#Composite_type_categories"><span class="tocnumber">4.1.2</span> <span class="toctext">Composite type categories</span></a></li>
<li class="toclevel-3"><a href="types.html#Type_properties_2"><span class="tocnumber">4.1.3</span> <span class="toctext">Type properties</span></a></li>
<li class="toclevel-3"><a href="types.html#Supported_operations"><span class="tocnumber">4.1.4</span> <span class="toctext">Supported operations</span></a></li>
<li class="toclevel-3"><a href="types.html#Property_queries"><span class="tocnumber">4.1.5</span> <span class="toctext">Property queries</span></a></li>
<li class="toclevel-3"><a href="types.html#Type_relationships"><span class="tocnumber">4.1.6</span> <span class="toctext">Type relationships</span></a></li>
</ul>
</li>
<li class="toclevel-2 tocsection-10"><a href="types.html#Type_modifications"><span class="tocnumber">4.2</span> <span class="toctext">Type modifications</span></a>
<ul>
<li class="toclevel-3"><a href="types.html#Const-volatility_specifiers"><span class="tocnumber">4.2.1</span> <span class="toctext">Const-volatility specifiers</span></a></li>
<li class="toclevel-3"><a href="types.html#References"><span class="tocnumber">4.2.2</span> <span class="toctext">References</span></a></li>
<li class="toclevel-3"><a href="types.html#Pointers"><span class="tocnumber">4.2.3</span> <span class="toctext">Pointers</span></a></li>
<li class="toclevel-3"><a href="types.html#Sign_modifiers"><span class="tocnumber">4.2.4</span> <span class="toctext">Sign modifiers</span></a></li>
<li class="toclevel-3"><a href="types.html#Arrays"><span class="tocnumber">4.2.5</span> <span class="toctext">Arrays</span></a></li>
</ul>
</li>
<li class="toclevel-2 tocsection-11"><a href="types.html#Miscellaneous_transformations"><span class="tocnumber">4.3</span> <span class="toctext">Miscellaneous transformations</span></a></li>
<li class="toclevel-2 tocsection-12"><a href="types.html#Operations_on_traits"><span class="tocnumber">4.4</span> <span class="toctext">Operations on traits</span></a></li>
<li class="toclevel-2 tocsection-13"><a href="types.html#Helper_classes"><span class="tocnumber">4.5</span> <span class="toctext">Helper classes</span></a></li>
</ul>
</li>
<li class="toclevel-1 tocsection-14"><a href="types.html#See_also"><span class="tocnumber">5</span> <span class="toctext">See also</span></a></li>
</ul>
</td></tr></table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/types&action=edit&section=1" title="Edit section: Basic types">edit</a>]</span> <span class="mw-headline" id="Basic_types">Basic types</span></h3>
<h4><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/types&action=edit&section=2" title="Edit section: Fundamental types defined by the language">edit</a>]</span> <span class="mw-headline" id="Fundamental_types_defined_by_the_language"><a href="language/types.html" title="cpp/language/types"> Fundamental types defined by the language</a></span></h4>
<h4><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/types&action=edit&section=3" title="Edit section: Additional basic types and macros">edit</a>]</span> <span class="mw-headline" id="Additional_basic_types_and_macros">Additional basic types and macros</span></h4>
<table class="t-dsc-begin">
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><cstddef></code> </div>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/size_t.html" title="cpp/types/size t"> <span class="t-lines"><span>size_t</span></span></a></div></div>
</td>
<td> unsigned integer type returned by the <a href="language/sizeof.html" title="cpp/language/sizeof"><tt>sizeof</tt></a> operator <br /> <span class="t-mark">(typedef)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_size_t&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/ptrdiff_t.html" title="cpp/types/ptrdiff t"> <span class="t-lines"><span>ptrdiff_t</span></span></a></div></div>
</td>
<td> signed integer type returned when subtracting two pointers <br /> <span class="t-mark">(typedef)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_ptrdiff_t&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/nullptr_t.html" title="cpp/types/nullptr t"> <span class="t-lines"><span>nullptr_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> the type of the null pointer literal <a href="language/nullptr.html" title="cpp/language/nullptr"><tt>nullptr</tt></a> <br /> <span class="t-mark">(typedef)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_nullptr_t&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/NULL.html" title="cpp/types/NULL"> <span class="t-lines"><span>NULL</span></span></a></div></div>
</td>
<td> implementation-defined null pointer constant <br /> <span class="t-mark">(macro constant)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_NULL&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/max_align_t.html" title="cpp/types/max align t"> <span class="t-lines"><span>max_align_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> POD type with alignment requirement as great as any other scalar type <br /> <span class="t-mark">(typedef)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_max_align_t&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/offsetof.html" title="cpp/types/offsetof"> <span class="t-lines"><span>offsetof</span></span></a></div></div>
</td>
<td> byte offset from the beginning of a standard-layout type to specified member <br /> <span class="t-mark">(function macro)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_offsetof&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><cstdbool></code> </div>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><span class="t-lines"><span>__bool_true_false_are_defined</span></span></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> C compatibility macro constant, expands to integer constant <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">1</span></span></span> <br /> <span class="t-mark">(macro constant)</span>
</td></tr>
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><cstdalign></code> </div>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><span class="t-lines"><span>__alignas_is_defined</span></span></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> C compatibility macro constant, expands to integer constant <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="nu0">1</span></span></span> <br /> <span class="t-mark">(macro constant)</span>
</td></tr>
</table>
<h4><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/types&action=edit&section=4" title="Edit section: Fixed width integer types (since C++11)">edit</a>]</span> <span class="mw-headline" id="Fixed_width_integer_types_.28since_C.2B.2B11.29"><a href="types/integer.html" title="cpp/types/integer"> Fixed width integer types</a> <span class="t-mark-rev t-since-cxx11">(since C++11)</span></span></h4>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/types&action=edit&section=5" title="Edit section: Numeric limits">edit</a>]</span> <span class="mw-headline" id="Numeric_limits">Numeric limits</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><limits></code> </div>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/numeric_limits.1.html" title="cpp/types/numeric limits"> <span class="t-lines"><span>numeric_limits</span></span></a></div></div>
</td>
<td> provides an interface to query properties of all fundamental numeric types. <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_numeric_limits&action=edit">[edit]</a></span>
</td></tr>
</table>
<h4><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/types&action=edit&section=6" title="Edit section: C numeric limits interface">edit</a>]</span> <span class="mw-headline" id="C_numeric_limits_interface"><a href="types/climits.1.html" title="cpp/types/climits">C numeric limits interface</a></span></h4>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/types&action=edit&section=7" title="Edit section: Runtime type identification">edit</a>]</span> <span class="mw-headline" id="Runtime_type_identification">Runtime type identification</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/type_info.html" title="cpp/types/type info"> <span class="t-lines"><span>type_info</span></span></a></div></div>
</td>
<td> contains some type's information, generated by the implementation.<br /> This is the class returned by the <a href="language/typeid.html" title="cpp/language/typeid"> typeid</a> operator. <br /> <span class="t-mark">(class)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_type_info&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/type_index.html" title="cpp/types/type index"> <span class="t-lines"><span>type_index</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> wrapper around a <code>type_info</code> object, that can be used as index in associative and unordered associative containers <br /> <span class="t-mark">(class)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_type_index&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/bad_typeid.html" title="cpp/types/bad typeid"> <span class="t-lines"><span>bad_typeid</span></span></a></div></div>
</td>
<td> exception that is thrown if an argument in a <a href="language/typeid.html" title="cpp/language/typeid"> typeid expression</a> is null <br /> <span class="t-mark">(class)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_bad_typeid&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/bad_cast.html" title="cpp/types/bad cast"> <span class="t-lines"><span>bad_cast</span></span></a></div></div>
</td>
<td> exception that is thrown by an invalid <a href="language/dynamic_cast.html" title="cpp/language/dynamic cast"><tt>dynamic_cast</tt></a> expression, i.e. a cast of reference type fails <br /> <span class="t-mark">(class)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_bad_cast&action=edit">[edit]</a></span>
</td></tr>
</table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/types&action=edit&section=8" title="Edit section: Type traits (since C++11)">edit</a>]</span> <span class="mw-headline" id="Type_traits_.28since_C.2B.2B11.29">Type traits <span class="t-mark-rev t-since-cxx11">(since C++11)</span></span></h3>
<p>Type traits defines a compile-time template-based interface to query or modify the properties of types.
</p><p>Any attempt to specialize any of the class templates listed in this section results in undefined behavior, except that <span class="t-lc"><a href="types/common_type.html" title="cpp/types/common type">std::common_type</a></span> may be specialized if the specialization depends on a user-defined type.
</p>
<h4><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/types&action=edit&section=9" title="Edit section: Type properties">edit</a>]</span> <span class="mw-headline" id="Type_properties">Type properties</span></h4>
<table class="t-dsc-begin">
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><type_traits></code> </div>
</td></tr>
<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Primary_type_categories"> Primary type categories </span></h5>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_void.html" title="cpp/types/is void"> <span class="t-lines"><span>is_void</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">void</span></span></span> <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_void&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_null_pointer.html" title="cpp/types/is null pointer"> <span class="t-lines"><span>is_null_pointer</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div></div>
</td>
<td> checks if a type is <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="types/nullptr_t.html"><span class="kw102">std::<span class="me2">nullptr_t</span></span></a></span></span> <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_null_pointer&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_integral.html" title="cpp/types/is integral"> <span class="t-lines"><span>is_integral</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is integral type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_integral&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_floating_point.html" title="cpp/types/is floating point"> <span class="t-lines"><span>is_floating_point</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is floating-point type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_floating_point&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_array.html" title="cpp/types/is array"> <span class="t-lines"><span>is_array</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is an array type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_array&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_enum.html" title="cpp/types/is enum"> <span class="t-lines"><span>is_enum</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is an enumeration type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_enum&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_union.html" title="cpp/types/is union"> <span class="t-lines"><span>is_union</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is an union type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_union&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_class.html" title="cpp/types/is class"> <span class="t-lines"><span>is_class</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is a non-union class type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_class&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_function.html" title="cpp/types/is function"> <span class="t-lines"><span>is_function</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is a function type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_function&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_pointer.html" title="cpp/types/is pointer"> <span class="t-lines"><span>is_pointer</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is a pointer type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_pointer&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_lvalue_reference.html" title="cpp/types/is lvalue reference"> <span class="t-lines"><span>is_lvalue_reference</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is <i>lvalue reference</i> <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_lvalue_reference&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_rvalue_reference.html" title="cpp/types/is rvalue reference"> <span class="t-lines"><span>is_rvalue_reference</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is <i>rvalue reference</i> <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_rvalue_reference&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_member_object_pointer.html" title="cpp/types/is member object pointer"> <span class="t-lines"><span>is_member_object_pointer</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is a pointer to a non-static member object <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_member_object_pointer&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_member_function_pointer.html" title="cpp/types/is member function pointer"> <span class="t-lines"><span>is_member_function_pointer</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is a pointer to a non-static member function <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_member_function_pointer&action=edit">[edit]</a></span>
</td></tr>
<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Composite_type_categories"> Composite type categories </span></h5>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_fundamental.html" title="cpp/types/is fundamental"> <span class="t-lines"><span>is_fundamental</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is fundamental type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_fundamental&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_arithmetic.html" title="cpp/types/is arithmetic"> <span class="t-lines"><span>is_arithmetic</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is arithmetic type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_arithmetic&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_scalar.html" title="cpp/types/is scalar"> <span class="t-lines"><span>is_scalar</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is scalar type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_scalar&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_object.html" title="cpp/types/is object"> <span class="t-lines"><span>is_object</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is object type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_object&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_compound.html" title="cpp/types/is compound"> <span class="t-lines"><span>is_compound</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is compound type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_compound&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_reference.html" title="cpp/types/is reference"> <span class="t-lines"><span>is_reference</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is either <i>lvalue reference</i> or <i>rvalue reference</i> <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_reference&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_member_pointer.html" title="cpp/types/is member pointer"> <span class="t-lines"><span>is_member_pointer</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is a pointer to a non-static member function or object <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_member_pointer&action=edit">[edit]</a></span>
</td></tr>
<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Type_properties_2"> Type properties </span></h5>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_const.html" title="cpp/types/is const"> <span class="t-lines"><span>is_const</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is const-qualified <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_const&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_volatile.html" title="cpp/types/is volatile"> <span class="t-lines"><span>is_volatile</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is volatile-qualified <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_volatile&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_trivial.html" title="cpp/types/is trivial"> <span class="t-lines"><span>is_trivial</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is trivial <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_trivial&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_trivially_copyable.html" title="cpp/types/is trivially copyable"> <span class="t-lines"><span>is_trivially_copyable</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is trivially copyable <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_trivially_copyable&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_standard_layout.html" title="cpp/types/is standard layout"> <span class="t-lines"><span>is_standard_layout</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is standard-layout type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_standard_layout&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_pod.html" title="cpp/types/is pod"> <span class="t-lines"><span>is_pod</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is plain-old data (POD) type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_pod&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_literal_type.html" title="cpp/types/is literal type"> <span class="t-lines"><span>is_literal_type</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is literal type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_literal_type&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_empty.html" title="cpp/types/is empty"> <span class="t-lines"><span>is_empty</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is class (but not union) type and has no data <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_empty&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_polymorphic.html" title="cpp/types/is polymorphic"> <span class="t-lines"><span>is_polymorphic</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is polymorphic class type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_polymorphic&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_final.html" title="cpp/types/is final"> <span class="t-lines"><span>is_final</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div></div>
</td>
<td> checks if a type is a final class type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_final&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_abstract.html" title="cpp/types/is abstract"> <span class="t-lines"><span>is_abstract</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is abstract class type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_abstract&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_signed.html" title="cpp/types/is signed"> <span class="t-lines"><span>is_signed</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is signed arithmetic type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_signed&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_unsigned.html" title="cpp/types/is unsigned"> <span class="t-lines"><span>is_unsigned</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is unsigned arithmetic type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_unsigned&action=edit">[edit]</a></span>
</td></tr>
</table>
<table class="t-dsc-begin">
<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Supported_operations"> Supported operations </span></h5>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_constructible.html" title="cpp/types/is constructible"> <span class="t-lines"><span>is_constructible</span><span>is_trivially_constructible</span><span>is_nothrow_constructible</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type has a constructor for specific arguments <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_constructible&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_default_constructible.html" title="cpp/types/is default constructible"> <span class="t-lines"><span>is_default_constructible</span><span>is_trivially_default_constructible</span><span>is_nothrow_default_constructible</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type has a default constructor <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_default_constructible&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_copy_constructible.html" title="cpp/types/is copy constructible"> <span class="t-lines"><span>is_copy_constructible</span><span>is_trivially_copy_constructible</span><span>is_nothrow_copy_constructible</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type has a copy constructor <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_copy_constructible&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_move_constructible.html" title="cpp/types/is move constructible"> <span class="t-lines"><span>is_move_constructible</span><span>is_trivially_move_constructible</span><span>is_nothrow_move_constructible</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type has a move constructor <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_move_constructible&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_assignable.html" title="cpp/types/is assignable"> <span class="t-lines"><span>is_assignable</span><span>is_trivially_assignable</span><span>is_nothrow_assignable</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type has a assignment operator for a specific argument <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_assignable&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_copy_assignable.html" title="cpp/types/is copy assignable"> <span class="t-lines"><span>is_copy_assignable</span><span>is_trivially_copy_assignable</span><span>is_nothrow_copy_assignable</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type has a copy assignment operator <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_copy_assignable&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_move_assignable.html" title="cpp/types/is move assignable"> <span class="t-lines"><span>is_move_assignable</span><span>is_trivially_move_assignable</span><span>is_nothrow_move_assignable</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type has a move assignment operator <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_move_assignable&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_destructible.html" title="cpp/types/is destructible"> <span class="t-lines"><span>is_destructible</span><span>is_trivially_destructible</span><span>is_nothrow_destructible</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type has a non-deleted destructor <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_destructible&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/has_virtual_destructor.html" title="cpp/types/has virtual destructor"> <span class="t-lines"><span>has_virtual_destructor</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type has a virtual destructor <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_has_virtual_destructor&action=edit">[edit]</a></span>
</td></tr>
</table>
<table class="t-dsc-begin">
<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Property_queries"> Property queries </span></h5>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/alignment_of.html" title="cpp/types/alignment of"> <span class="t-lines"><span>alignment_of</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> obtains the type's alignment requirements <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_alignment_of&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/rank.html" title="cpp/types/rank"> <span class="t-lines"><span>rank</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> obtains the number of dimensions of an array type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_rank&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/extent.html" title="cpp/types/extent"> <span class="t-lines"><span>extent</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> obtains the size of an array type along a specified dimension <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_extent&action=edit">[edit]</a></span>
</td></tr>
</table>
<table class="t-dsc-begin">
<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Type_relationships"> Type relationships </span></h5>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_same.html" title="cpp/types/is same"> <span class="t-lines"><span>is_same</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if two types are the same <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_same&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_base_of.html" title="cpp/types/is base of"> <span class="t-lines"><span>is_base_of</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type is derived from the other type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_base_of&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/is_convertible.html" title="cpp/types/is convertible"> <span class="t-lines"><span>is_convertible</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> checks if a type can be converted to the other type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_is_convertible&action=edit">[edit]</a></span>
</td></tr>
</table>
<h4><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/types&action=edit&section=10" title="Edit section: Type modifications">edit</a>]</span> <span class="mw-headline" id="Type_modifications">Type modifications</span></h4>
<p>Type modification templates create new type definitions by applying modifications on a template parameter. The resulting type can then be accessed through <code>type</code> member typedef.
</p>
<table class="t-dsc-begin">
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><type_traits></code> </div>
</td></tr>
<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Const-volatility_specifiers"> Const-volatility specifiers </span></h5>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/remove_cv.html" title="cpp/types/remove cv"> <span class="t-lines"><span>remove_cv</span><span>remove_const</span><span>remove_volatile</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> removes <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">const</span></span></span> or/and <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">volatile</span></span></span> specifiers from the given type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_remove_cv&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/add_cv.html" title="cpp/types/add cv"> <span class="t-lines"><span>add_cv</span><span>add_const</span><span>add_volatile</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> adds <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">const</span></span></span> or/and <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">volatile</span></span></span> specifiers to the given type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_add_cv&action=edit">[edit]</a></span>
</td></tr>
<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="References"> References </span></h5>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/remove_reference.html" title="cpp/types/remove reference"> <span class="t-lines"><span>remove_reference</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> removes reference from the given type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_remove_reference&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/add_reference.html" title="cpp/types/add reference"> <span class="t-lines"><span>add_lvalue_reference</span><span>add_rvalue_reference</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> adds <i>lvalue</i> or <i>rvalue</i> reference to the given type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_add_reference&action=edit">[edit]</a></span>
</td></tr>
<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Pointers"> Pointers </span></h5>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/remove_pointer.html" title="cpp/types/remove pointer"> <span class="t-lines"><span>remove_pointer</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> removes pointer from the given type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_remove_pointer&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/add_pointer.html" title="cpp/types/add pointer"> <span class="t-lines"><span>add_pointer</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> adds pointer to the given type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_add_pointer&action=edit">[edit]</a></span>
</td></tr>
<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Sign_modifiers"> Sign modifiers </span></h5>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/make_signed.html" title="cpp/types/make signed"> <span class="t-lines"><span>make_signed</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> makes the given integral type signed <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_make_signed&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/make_unsigned.html" title="cpp/types/make unsigned"> <span class="t-lines"><span>make_unsigned</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> makes the given integral type unsigned <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_make_unsigned&action=edit">[edit]</a></span>
</td></tr>
<tr>
<td colspan="2"> <h5> <span class="mw-headline" id="Arrays"> Arrays </span></h5>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/remove_extent.html" title="cpp/types/remove extent"> <span class="t-lines"><span>remove_extent</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> removes one extent from the given array type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_remove_extent&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/remove_all_extents.html" title="cpp/types/remove all extents"> <span class="t-lines"><span>remove_all_extents</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> removes all extents from the given array type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_remove_all_extents&action=edit">[edit]</a></span>
</td></tr>
</table>
<h4><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/types&action=edit&section=11" title="Edit section: Miscellaneous transformations">edit</a>]</span> <span class="mw-headline" id="Miscellaneous_transformations">Miscellaneous transformations</span></h4>
<table class="t-dsc-begin">
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><type_traits></code> </div>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/aligned_storage.html" title="cpp/types/aligned storage"> <span class="t-lines"><span>aligned_storage</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> defines the type suitable for use as uninitialized storage for types of given size <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_aligned_storage&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/aligned_union.html" title="cpp/types/aligned union"> <span class="t-lines"><span>aligned_union</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> defines the type suitable for use as uninitialized storage for all given types <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_aligned_union&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/decay.html" title="cpp/types/decay"> <span class="t-lines"><span>decay</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> applies type transformations as when passing a function argument by value <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_decay&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/enable_if.html" title="cpp/types/enable if"> <span class="t-lines"><span>enable_if</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> hides a function overload or template specialization based on compile-time boolean <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_enable_if&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/conditional.html" title="cpp/types/conditional"> <span class="t-lines"><span>conditional</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> chooses one type or another based on compile-type boolean <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_conditional&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/common_type.html" title="cpp/types/common type"> <span class="t-lines"><span>common_type</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> deduces the result type of a mixed-mode arithmetic expression <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_common_type&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/underlying_type.html" title="cpp/types/underlying type"> <span class="t-lines"><span>underlying_type</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> obtains the underlying integer type for a given enumeration type <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_underlying_type&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/result_of.html" title="cpp/types/result of"> <span class="t-lines"><span>result_of</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td> deduces the return type of a function call expression <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_result_of&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/void_t.html" title="cpp/types/void t"> <span class="t-lines"><span>void_t</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div></div>
</td>
<td> void variadic alias template <br /> <span class="t-mark">(alias template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_void_t&action=edit">[edit]</a></span>
</td></tr>
</table>
<h4><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/types&action=edit&section=12" title="Edit section: Operations on traits">edit</a>]</span> <span class="mw-headline" id="Operations_on_traits">Operations on traits</span></h4>
<table class="t-dsc-begin">
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><type_traits></code> </div>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/conjunction.html" title="cpp/types/conjunction"> <span class="t-lines"><span>conjunction</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div></div>
</td>
<td> variadic logical AND metafunction <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_conjunction&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/disjunction.html" title="cpp/types/disjunction"> <span class="t-lines"><span>disjunction</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div></div>
</td>
<td> variadic logical OR metafunction <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_disjunction&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/negation.html" title="cpp/types/negation"> <span class="t-lines"><span>negation</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div></div>
</td>
<td> logical NOT metafunction <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_negation&action=edit">[edit]</a></span>
</td></tr>
</table>
<h4><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/types&action=edit&section=13" title="Edit section: Helper classes">edit</a>]</span> <span class="mw-headline" id="Helper_classes">Helper classes</span></h4>
<table class="t-dsc-begin">
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><type_traits></code> </div>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/integral_constant.html" title="cpp/types/integral constant"> <span class="t-lines"><span>integral_constant</span><span>bool_constant</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div></div>
</td>
<td> compile-time constant of specified type with specified value <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/types/dsc_integral_constant&action=edit">[edit]</a></span>
</td></tr>
</table>
<p>Two specializations of <span class="t-lc"><a href="types/integral_constant.html" title="cpp/types/integral constant">std::integral_constant</a></span> for the type <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">bool</span></span></span> are provided:
</p>
<table class="t-dsc-begin">
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><type_traits></code> </div>
</td></tr>
<tr class="t-dsc-hitem">
<td> Type
</td>
<td> Definition
</td></tr>
<tr class="t-dsc">
<td> <code>true_type</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="types/integral_constant.html"><span class="kw553">std::<span class="me2">integral_constant</span></span></a><span class="sy1"><</span><span class="kw4">bool</span>, <span class="kw2">true</span><span class="sy1">></span></span></span>
</td></tr>
<tr class="t-dsc">
<td> <code>false_type</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="types/integral_constant.html"><span class="kw553">std::<span class="me2">integral_constant</span></span></a><span class="sy1"><</span><span class="kw4">bool</span>, <span class="kw2">false</span><span class="sy1">></span></span></span>
</td></tr>
</table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/types&action=edit&section=14" title="Edit section: See also">edit</a>]</span> <span class="mw-headline" id="See_also">See also</span></h3>
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<td colspan="2"> <div class="t-dsc-see"><span><a href="../c/types.html" title="c/types">C documentation</a></span> for <span class="t-dsc-see-tt"><span>Type support library</span></span></div>
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