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156 lines
6.6 KiB
HTML
<html>
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<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
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<title>safe<T></title>
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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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<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 alt="pre-boost" width="30%" height="30%" src="pre-boost.jpg"></td>
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<td align="center"><a href="../../index.html">Home</a></td>
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<a accesskey="p" href="safe_signed_range.html"><img src="images/prev.png" alt="Prev"></a><a accesskey="u" href="types.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="functions.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.safe"></a>safe<T></h3></div></div></div>
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<div class="toc"><dl>
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<dt><span class="section"><a href="safe.html#id753980">Description</a></span></dt>
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<dt><span class="section"><a href="safe.html#id753999">Template Parameters</a></span></dt>
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<dt><span class="section"><a href="safe.html#id754085">Model of</a></span></dt>
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<dt><span class="section"><a href="safe.html#id754099">Derived From</a></span></dt>
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<dt><span class="section"><a href="safe.html#id754139">Notation</a></span></dt>
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<dt><span class="section"><a href="safe.html#id754225">Header</a></span></dt>
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<dt><span class="section"><a href="safe.html#id754246">Example of use</a></span></dt>
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<dt><span class="section"><a href="safe.html#id754272">Notes</a></span></dt>
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<dt><span class="section"><a href="safe.html#id754284">See Also</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="id753980"></a>Description</h4></div></div></div>
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<p>A <code class="computeroutput">safe<T></code> can be used anywhere a type T is used.
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When T is used in operation which overflows, a exception is thrown</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="id753999"></a>Template Parameters</h4></div></div></div>
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<p></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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<col align="left">
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</colgroup>
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<thead><tr>
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<th align="left">Parameter</th>
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<th align="left">Type Requirements</th>
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<th align="left">Description</th>
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</tr></thead>
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<tbody><tr>
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<td align="left"><code class="computeroutput">T</code></td>
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<td align="left"><a class="link" href="numeric.html" title="Numeric<T>">Numeric</a></td>
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<td align="left"><p>The underlying integer type</p></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="id754085"></a>Model 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="id754099"></a>Derived From</h4></div></div></div>
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<p><code class="computeroutput"><a class="link" href="safe_signed_range.html" title="safe_signed_range<MIN, MAX>">safe_signed_range<T></a></code>
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(if std::numeric_limits<T>::is_signed == ftrue)</p>
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<p><code class="computeroutput"><a class="link" href="safe_unsigned_range.html" title="safe_unsigned_range<MIN, MAX>">safe_unsigned_range<T></a></code>
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(if std::numeric_limits<T>::is_signed == ftrue)</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="id754139"></a>Notation</h4></div></div></div>
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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">Symbol</th>
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<th align="left">Description</th>
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</tr></thead>
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<tbody>
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<tr>
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<td align="left"><code class="computeroutput">T</code></td>
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<td align="left">A type that models the <a class="link" href="numeric.html" title="Numeric<T>">Numeric</a> concept</td>
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</tr>
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<tr>
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<td align="left">t</td>
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<td align="left">An object of type <code class="computeroutput">T</code>
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</td>
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</tr>
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</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="id754225"></a>Header</h4></div></div></div>
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<p><code class="filename"><a href="../../include/safe_integer.hpp" target="_top">#include
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<boost/safe_numerics/safe_integer.hpp></a></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="id754246"></a>Example of use</h4></div></div></div>
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<p>The following program will emit an error message on a machine where
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int is only 16 bits but run without problem on a machine where int is 32
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bits.</p>
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<pre class="programlisting">#include <boost/numeric/safe.hpp>
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#include <iostream>
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void f(){
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safe<int> i = 400;
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safe<int> j;
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try {
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j = i * i;
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}
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catch(...){
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std::cout << "overflow error" << std::endl;
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}
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}
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</pre>
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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="id754272"></a>Notes</h4></div></div></div>
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<p>Footnotes (if any) that are referred to by other parts of the
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page.</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="id754284"></a>See Also</h4></div></div></div>
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<p>Footnotes (if any) that are referred to by other parts of the
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page.</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="???" target="_top">Subject to Boost Software License</a></p>
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</div></td>
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</tr></table>
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<hr>
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<div class="spirit-nav">
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<a accesskey="p" href="safe_signed_range.html"><img src="images/prev.png" alt="Prev"></a><a accesskey="u" href="types.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="functions.html"><img src="images/next.png" alt="Next"></a>
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