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<title>QuantLib: Numeric limits</title>
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<h1>Numeric limits<br>
<small>
[<a class="el" href="group__macros.html">QuantLib macros</a>]</small>
</h1><hr><a name="_details"></a><h2>Detailed Description</h2>
Some compilers do not give an implementation of <code><limits></code> yet. For the code to be portable these macros should be used instead of the corresponding method of <code>std::numeric_limits</code> or the corresponding macro defined in <code><limits.h></code>.
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<tr><td colspan="2"><br><h2>Defines</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__limit_macros.html#g3aeae4c27cde504362979f2b14ec9fa8">QL_MIN_INTEGER</a> ((std::numeric_limits<QL_INTEGER>::min)())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__limit_macros.html#gc49205214551771cf97efe9839ac6cb5">QL_MAX_INTEGER</a> ((std::numeric_limits<QL_INTEGER>::max)())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__limit_macros.html#g8a6736b7bfef354a1fc507317d49117a">QL_MIN_REAL</a> -((std::numeric_limits<QL_REAL>::max)())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__limit_macros.html#g866445bac08ce9344f17f74d683f77fc">QL_MIN_POSITIVE_REAL</a> ((std::numeric_limits<QL_REAL>::min)())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__limit_macros.html#g31675a375a563ed7a1bba05c664489af">QL_MAX_REAL</a> ((std::numeric_limits<QL_REAL>::max)())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__limit_macros.html#g4f2e6bcf6b19224bce1a5a6234286c17">QL_EPSILON</a> ((std::numeric_limits<QL_REAL>::epsilon)())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ge58989034e407d370803dc448dab50a1"></a><!-- doxytag: member="limitMacros::QL_NULL_INTEGER" ref="ge58989034e407d370803dc448dab50a1" args="" -->
#define </td><td class="memItemRight" valign="bottom"><b>QL_NULL_INTEGER</b> ((std::numeric_limits<int>::max)())</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g45128fec402ed57b1e9f79b421f036ec"></a><!-- doxytag: member="limitMacros::QL_NULL_REAL" ref="g45128fec402ed57b1e9f79b421f036ec" args="" -->
#define </td><td class="memItemRight" valign="bottom"><b>QL_NULL_REAL</b> ((std::numeric_limits<float>::max)())</td></tr>
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<hr><h2>Define Documentation</h2>
<a class="anchor" name="g3aeae4c27cde504362979f2b14ec9fa8"></a><!-- doxytag: member="qldefines.hpp::QL_MIN_INTEGER" ref="g3aeae4c27cde504362979f2b14ec9fa8" args="" -->
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<td class="memname">#define QL_MIN_INTEGER ((std::numeric_limits<QL_INTEGER>::min)()) </td>
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<p>
Defines the value of the largest representable negative integer value
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<a class="anchor" name="gc49205214551771cf97efe9839ac6cb5"></a><!-- doxytag: member="qldefines.hpp::QL_MAX_INTEGER" ref="gc49205214551771cf97efe9839ac6cb5" args="" -->
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<td class="memname">#define QL_MAX_INTEGER ((std::numeric_limits<QL_INTEGER>::max)()) </td>
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<div class="memdoc">
<p>
Defines the value of the largest representable integer value
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<a class="anchor" name="g8a6736b7bfef354a1fc507317d49117a"></a><!-- doxytag: member="qldefines.hpp::QL_MIN_REAL" ref="g8a6736b7bfef354a1fc507317d49117a" args="" -->
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<td class="memname">#define QL_MIN_REAL -((std::numeric_limits<QL_REAL>::max)()) </td>
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<p>
Defines the value of the largest representable negative floating-point value
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<a class="anchor" name="g866445bac08ce9344f17f74d683f77fc"></a><!-- doxytag: member="qldefines.hpp::QL_MIN_POSITIVE_REAL" ref="g866445bac08ce9344f17f74d683f77fc" args="" -->
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<td class="memname">#define QL_MIN_POSITIVE_REAL ((std::numeric_limits<QL_REAL>::min)()) </td>
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<p>
Defines the value of the smallest representable positive double value
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<a class="anchor" name="g31675a375a563ed7a1bba05c664489af"></a><!-- doxytag: member="qldefines.hpp::QL_MAX_REAL" ref="g31675a375a563ed7a1bba05c664489af" args="" -->
<div class="memitem">
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<td class="memname">#define QL_MAX_REAL ((std::numeric_limits<QL_REAL>::max)()) </td>
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<div class="memdoc">
<p>
Defines the value of the largest representable floating-point value
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<a class="anchor" name="g4f2e6bcf6b19224bce1a5a6234286c17"></a><!-- doxytag: member="qldefines.hpp::QL_EPSILON" ref="g4f2e6bcf6b19224bce1a5a6234286c17" args="" -->
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<td class="memname">#define QL_EPSILON ((std::numeric_limits<QL_REAL>::epsilon)()) </td>
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<div class="memdoc">
<p>
Defines the machine precision for operations over doubles
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