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<table id="toc" class="toc"><tr><td><div id="toctitle"><h2>Contents</h2></div>
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<li class="toclevel-1 tocsection-1"><a href="types.html#Basic_types"><span class="tocnumber">1</span> <span class="toctext">Basic types</span></a>
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<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_convenience_macros"><span class="tocnumber">1.2</span> <span class="toctext">Additional basic types and convenience macros</span></a></li>
<li class="toclevel-2 tocsection-4"><a href="types.html#Boolean_type_support_.28since_C99.29"><span class="tocnumber">1.3</span> <span class="toctext">Boolean type support <span>(since C99)</span></span></a></li>
<li class="toclevel-2 tocsection-5"><a href="types.html#Fixed_width_integer_types_.28since_C99.29"><span class="tocnumber">1.4</span> <span class="toctext">Fixed width integer types <span>(since C99)</span></span></a></li>
<li class="toclevel-2 tocsection-6"><a href="types.html#Numeric_limits"><span class="tocnumber">1.5</span> <span class="toctext">Numeric limits</span></a></li>
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<li class="toclevel-1 tocsection-7"><a href="types.html#References"><span class="tocnumber">2</span> <span class="toctext">References</span></a></li>
<li class="toclevel-1 tocsection-8"><a href="types.html#See_also"><span class="tocnumber">3</span> <span class="toctext">See also</span></a></li>
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<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=c/types&action=edit&section=1" title="Edit section: Basic types">edit</a>]</span> <span class="mw-headline" id="Basic_types">Basic types</span></h3>
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<h4><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=c/types&action=edit&section=3" title="Edit section: Additional basic types and convenience macros">edit</a>]</span> <span class="mw-headline" id="Additional_basic_types_and_convenience_macros">Additional basic types and convenience macros</span></h4>
<table class="t-dsc-begin">
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><stddef.h></code> </div>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="types/size_t.html" title="c/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="c/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:c/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="c/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:c/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/NULL.html" title="c/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:c/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="c/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-c11">(C11)</span></span></span></div></div>
</td>
<td> a 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:c/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="c/types/offsetof"> <span class="t-lines"><span>offsetof</span></span></a></div></div>
</td>
<td> byte offset from the beginning of a struct 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:c/types/dsc_offsetof&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><stdalign.h></code> </div>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><span class="t-lines"><span>alignas</span></span></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div>
</td>
<td> convenience macro, expands to keyword <a href="keyword/_Alignas.html" title="c/keyword/ Alignas">_Alignas</a> <br /> <span class="t-mark">(macro constant)</span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><span class="t-lines"><span>alignof</span></span></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div>
</td>
<td> convenience macro, expands to keyword <a href="keyword/_Alignof.html" title="c/keyword/ Alignof">_Alignof</a> <br /> <span class="t-mark">(macro constant)</span>
</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-c11">(C11)</span></span></span></div></div>
</td>
<td> expands to integer constant <code>1</code> <br /> <span class="t-mark">(macro constant)</span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><span class="t-lines"><span>__alignof_is_defined</span></span></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div>
</td>
<td> expands to integer constant <code>1</code> <br /> <span class="t-mark">(macro constant)</span>
</td></tr>
<tr class="t-dsc-header">
<td colspan="2"> <div>Defined in header <code><stdnoreturn.h></code> </div>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><span class="t-lines"><span>noreturn</span></span></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div>
</td>
<td> convenience macro, expands to <a href="keyword/_Noreturn.html" title="c/keyword/ Noreturn">_Noreturn</a> <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=c/types&action=edit&section=4" title="Edit section: Boolean type support (since C99)">edit</a>]</span> <span class="mw-headline" id="Boolean_type_support_.28since_C99.29"><a href="types/boolean.html" title="c/types/boolean"> Boolean type support</a> <span class="t-mark-rev t-since-c99">(since C99)</span></span></h4>
<h4><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=c/types&action=edit&section=5" title="Edit section: Fixed width integer types (since C99)">edit</a>]</span> <span class="mw-headline" id="Fixed_width_integer_types_.28since_C99.29"><a href="types/integer.html" title="c/types/integer"> Fixed width integer types</a> <span class="t-mark-rev t-since-c99">(since C99)</span></span></h4>
<h4><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=c/types&action=edit&section=6" title="Edit section: Numeric limits">edit</a>]</span> <span class="mw-headline" id="Numeric_limits"><a href="types/limits.html" title="c/types/limits"> Numeric limits</a></span></h4>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=c/types&action=edit&section=7" title="Edit section: References">edit</a>]</span> <span class="mw-headline" id="References">References</span></h3>
<div class="t-ref-std-11">
<ul><li> C11 standard (ISO/IEC 9899:2011):
</li></ul>
<dl><dd><ul><li> 7.15 Alignment <stdalign.h> (p: 268)
</li></ul>
</dd></dl>
<dl><dd><ul><li> 7.19 Common definitions <stddef.h> (p: 288)
</li></ul>
</dd></dl>
<dl><dd><ul><li> 7.23 _Noreturn <stdnoreturn.h> (p: 361)
</li></ul>
</dd></dl>
<div class="t-ref-std-c99">
<ul><li> C99 standard (ISO/IEC 9899:1999):
</li></ul>
<dl><dd><ul><li> 7.19 Common definitions <stddef.h> (p: 254)
</li></ul>
</dd></dl>
<div class="t-ref-std-c89">
<ul><li> C89/C90 standard (ISO/IEC 9899:1990):
</li></ul>
<dl><dd><ul><li> 4.1.5 Common definitions <stddef.h>
</li></ul>
</dd></dl>
</div>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=c/types&action=edit&section=8" title="Edit section: See also">edit</a>]</span> <span class="mw-headline" id="See_also">See also</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td colspan="2"> <div class="t-dsc-see"><span><a href="../cpp/types.html" title="cpp/types">C++ documentation</a></span> for <span class="t-dsc-see-tt"><span>Type support library</span></span></div>
</td></tr>
</table></div>
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