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1bc0b94e65
a) made trap_exception work b) updated manual and examples to show how to use library to eliminate runtime penalty c) added in safe_literal d) made corrections of various types
98 lines
5.0 KiB
HTML
98 lines
5.0 KiB
HTML
<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
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<title>Integer<T></title>
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<link rel="stylesheet" href="boostbook.css" type="text/css">
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<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
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<link rel="home" href="index.html" title="Safe Numerics">
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<link rel="up" href="concepts.html" title="Type Requirements">
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<link rel="prev" href="numeric.html" title="Numeric<T>">
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<link rel="next" href="safe_numeric_concept.html" title="SafeNumeric<T>">
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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<table cellpadding="2" width="100%"><tr>
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<td valign="top"><img href="index.html" height="164px" src="pre-boost.jpg" alt="Library Documentation Index"></td>
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<td><h2>Safe Numerics</h2></td>
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</tr></table>
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<div class="spirit-nav">
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<a accesskey="p" href="numeric.html"><img src="images/prev.png" alt="Prev"></a><a accesskey="u" href="concepts.html"><img src="images/up.png" alt="Up"></a><a accesskey="h" href="index.html"><img src="images/home.png" alt="Home"></a><a accesskey="n" href="safe_numeric_concept.html"><img src="images/next.png" alt="Next"></a>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="safe_numerics.integer"></a>Integer<T></h3></div></div></div>
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<div class="toc"><dl>
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<dt><span class="section"><a href="integer.html#idm473861851104">Description</a></span></dt>
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<dt><span class="section"><a href="integer.html#idm473861845088">Refinement of</a></span></dt>
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<dt><span class="section"><a href="integer.html#idm473861843584">Valid Expressions</a></span></dt>
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<dt><span class="section"><a href="integer.html#idm473861836208">Header</a></span></dt>
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<dt><span class="section"><a href="integer.html#idm473861834208">Models</a></span></dt>
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</dl></div>
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<div class="section">
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<div class="titlepage"><div><div><h4 class="title">
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<a name="idm473861851104"></a>Description</h4></div></div></div>
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<p>A type is fulls the requirements of an Integer if it has the
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properties of a integer.</p>
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<p>More specifically, a type T is Integer if there exists
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specialization of <code class="computeroutput">std::numeric_limits<T> for which
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std::numeric_limits<T>:: is_integer</code> is equal to
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<code class="computeroutput">true</code>. See the documentation for standard library class
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numeric_limits. The standard library includes such specializations for all
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the primitive numeric types. Note that this concept is distinct from the
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C++ standard library type traits <code class="computeroutput">is_integral</code> and
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<code class="computeroutput">is_arithmetic</code>. These latter fulfill the requirement of the
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concept Numeric. But there are types which fulfill this concept for which
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<code class="computeroutput">is_arithmetic<T>::value == false</code>. For example see
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<code class="computeroutput">safe<int></code>.</p>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h4 class="title">
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<a name="idm473861845088"></a>Refinement of</h4></div></div></div>
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<p><a class="link" href="numeric.html" title="Numeric<T>">Numeric</a></p>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h4 class="title">
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<a name="idm473861843584"></a>Valid Expressions</h4></div></div></div>
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<p>In addition to the expressions defined in <a class="link" href="numeric.html" title="Numeric<T>">Numeric</a> the following expressions
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must be valid. </p>
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<div class="informaltable"><table class="table">
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<colgroup>
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<col align="left">
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<col align="left">
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</colgroup>
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<thead><tr>
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<th align="left">Expression</th>
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<th align="left">Return Value</th>
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</tr></thead>
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<tbody><tr>
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<td align="left"><code class="computeroutput">std::numeric_limits<T>
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is_integer</code></td>
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<td align="left">true</td>
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</tr></tbody>
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</table></div>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h4 class="title">
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<a name="idm473861836208"></a>Header</h4></div></div></div>
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<p><a href="../../include/concept/numeric.hpp" target="_top"><code class="computeroutput">#include
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<safe_numerics/include/concepts/numeric.hpp> </code></a></p>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h4 class="title">
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<a name="idm473861834208"></a>Models</h4></div></div></div>
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<p><code class="computeroutput">int, safe<int>, safe_unsigned_range<0, 11>,
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etc.</code></p>
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</div>
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</div>
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<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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<td align="left"></td>
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<td align="right"><div class="copyright-footer">Copyright © 2012 Robert Ramey<p><a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">Subject to Boost
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Software License</a></p>
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</div></td>
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</tr></table>
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<div class="spirit-nav">
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<a accesskey="p" href="numeric.html"><img src="images/prev.png" alt="Prev"></a><a accesskey="u" href="concepts.html"><img src="images/up.png" alt="Up"></a><a accesskey="h" href="index.html"><img src="images/home.png" alt="Home"></a><a accesskey="n" href="safe_numeric_concept.html"><img src="images/next.png" alt="Next"></a>
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