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130 lines
6.4 KiB
HTML
130 lines
6.4 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- This manual is for GNU MPC, a library for multiple precision complex arithmetic,
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version 1.0.3 of February 2015.
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Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 INRIA
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with no
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Invariant Sections. A copy of the license is included in the section
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entitled "GNU Free Documentation License." -->
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Miscellaneous Complex Functions (GNU MPC 1.0.3)</title>
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<meta name="description" content="Miscellaneous Complex Functions (GNU MPC 1.0.3)">
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<meta name="keywords" content="Miscellaneous Complex Functions (GNU MPC 1.0.3)">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
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<link href="Complex-Functions.html#Complex-Functions" rel="up" title="Complex Functions">
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<link href="Advanced-Functions.html#Advanced-Functions" rel="next" title="Advanced Functions">
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<link href="Trigonometric-Functions.html#Trigonometric-Functions" rel="prev" title="Trigonometric Functions">
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<style type="text/css">
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a.summary-letter {text-decoration: none}
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-->
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</style>
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</head>
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<body lang="en">
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<a name="Miscellaneous-Complex-Functions"></a>
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<div class="header">
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<p>
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Next: <a href="Advanced-Functions.html#Advanced-Functions" accesskey="n" rel="next">Advanced Functions</a>, Previous: <a href="Trigonometric-Functions.html#Trigonometric-Functions" accesskey="p" rel="prev">Trigonometric Functions</a>, Up: <a href="Complex-Functions.html#Complex-Functions" accesskey="u" rel="up">Complex Functions</a> [<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="Miscellaneous-Functions"></a>
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<h3 class="section">5.10 Miscellaneous Functions</h3>
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<a name="index-Miscellaneous-complex-functions"></a>
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<dl>
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<dt><a name="index-mpc_005furandom"></a>Function: <em>int</em> <strong>mpc_urandom</strong> <em>(mpc_t <var>rop</var>, gmp_randstate_t <var>state</var>)</em></dt>
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<dd><p>Generate a uniformly distributed random complex in the unit square <em>[0,
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1] x [0, 1]</em>. Return 0, unless an exponent in the real or imaginary part
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is not in the current exponent range, in which case that part is set to NaN
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and a zero value is returned. The second argument is a <code>gmp_randstate_t</code>
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structure which should be created using the GMP <code>rand_init</code> function, see
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the GMP manual.
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</p></dd></dl>
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<dl>
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<dt><a name="index-mpc_005fget_005fversion"></a>Function: <em>const char *</em> <strong>mpc_get_version</strong> <em>(void)</em></dt>
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<dd><p>Return the GNU MPC version, as a null-terminated string.
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</p></dd></dl>
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<dl>
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<dt><a name="index-MPC_005fVERSION"></a>Macro: <strong>MPC_VERSION</strong></dt>
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<dt><a name="index-MPC_005fVERSION_005fMAJOR"></a>Macro: <strong>MPC_VERSION_MAJOR</strong></dt>
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<dt><a name="index-MPC_005fVERSION_005fMINOR"></a>Macro: <strong>MPC_VERSION_MINOR</strong></dt>
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<dt><a name="index-MPC_005fVERSION_005fPATCHLEVEL"></a>Macro: <strong>MPC_VERSION_PATCHLEVEL</strong></dt>
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<dt><a name="index-MPC_005fVERSION_005fSTRING"></a>Macro: <strong>MPC_VERSION_STRING</strong></dt>
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<dd><p><code>MPC_VERSION</code> is the version of GNU MPC as a preprocessing constant.
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<code>MPC_VERSION_MAJOR</code>, <code>MPC_VERSION_MINOR</code> and
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<code>MPC_VERSION_PATCHLEVEL</code> are respectively the major, minor and
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patch level of GNU MPC version, as preprocessing constants.
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<code>MPC_VERSION_STRING</code> is the version as a string constant, which
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can be compared to the result of <code>mpc_get_version</code> to check at
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run time the header file and library used match:
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</p><div class="example">
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<pre class="example">if (strcmp (mpc_get_version (), MPC_VERSION_STRING))
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fprintf (stderr, "Warning: header and library do not match\n");
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</pre></div>
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<p>Note: Obtaining different strings is not necessarily an error, as in
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general, a program compiled with some old GNU MPC version can be
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dynamically linked with a newer GNU MPC library version (if allowed by the
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library versioning system).
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</p></dd></dl>
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<dl>
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<dt><a name="index-MPC_005fVERSION_005fNUM"></a>Macro: <em>long</em> <strong>MPC_VERSION_NUM</strong> <em>(<var>major</var>, <var>minor</var>, <var>patchlevel</var>)</em></dt>
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<dd><p>Create an integer in the same format as used by <code>MPC_VERSION</code> from the
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given <var>major</var>, <var>minor</var> and <var>patchlevel</var>.
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Here is an example of how to check the GNU MPC version at compile time:
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</p><div class="example">
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<pre class="example">#if (!defined(MPC_VERSION) || (MPC_VERSION<MPC_VERSION_NUM(2,1,0)))
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# error "Wrong GNU MPC version."
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#endif
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</pre></div>
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</dd></dl>
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<hr>
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<div class="header">
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<p>
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Next: <a href="Advanced-Functions.html#Advanced-Functions" accesskey="n" rel="next">Advanced Functions</a>, Previous: <a href="Trigonometric-Functions.html#Trigonometric-Functions" accesskey="p" rel="prev">Trigonometric Functions</a>, Up: <a href="Complex-Functions.html#Complex-Functions" accesskey="u" rel="up">Complex Functions</a> [<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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</body>
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</html>
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