<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <!-- This manual describes how to install and use the GNU multiple precision arithmetic library, version 6.1.0. Copyright 1991, 1993-2015 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with the Front-Cover Texts being "A GNU Manual", and with the Back-Cover Texts being "You have freedom to copy and modify this GNU Manual, like GNU software". A copy of the license is included in GNU Free Documentation License. --> <!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ --> <head> <title>Miscellaneous Integer Functions (GNU MP 6.1.0)</title> <meta name="description" content="How to install and use the GNU multiple precision arithmetic library, version 6.1.0."> <meta name="keywords" content="Miscellaneous Integer Functions (GNU MP 6.1.0)"> <meta name="resource-type" content="document"> <meta name="distribution" content="global"> <meta name="Generator" content="makeinfo"> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <link href="index.html#Top" rel="start" title="Top"> <link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index"> <link href="Integer-Functions.html#Integer-Functions" rel="up" title="Integer Functions"> <link href="Integer-Special-Functions.html#Integer-Special-Functions" rel="next" title="Integer Special Functions"> <link href="Integer-Import-and-Export.html#Integer-Import-and-Export" rel="prev" title="Integer Import and Export"> <style type="text/css"> <!-- a.summary-letter {text-decoration: none} blockquote.indentedblock {margin-right: 0em} blockquote.smallindentedblock {margin-right: 0em; font-size: smaller} blockquote.smallquotation {font-size: smaller} div.display {margin-left: 3.2em} div.example {margin-left: 3.2em} div.lisp {margin-left: 3.2em} div.smalldisplay {margin-left: 3.2em} div.smallexample {margin-left: 3.2em} div.smalllisp {margin-left: 3.2em} kbd {font-style: oblique} pre.display {font-family: inherit} pre.format {font-family: inherit} pre.menu-comment {font-family: serif} pre.menu-preformatted {font-family: serif} pre.smalldisplay {font-family: inherit; font-size: smaller} pre.smallexample {font-size: smaller} pre.smallformat {font-family: inherit; font-size: smaller} pre.smalllisp {font-size: smaller} span.nolinebreak {white-space: nowrap} span.roman {font-family: initial; font-weight: normal} span.sansserif {font-family: sans-serif; font-weight: normal} ul.no-bullet {list-style: none} --> </style> </head> <body lang="en"> <a name="Miscellaneous-Integer-Functions"></a> <div class="header"> <p> Next: <a href="Integer-Special-Functions.html#Integer-Special-Functions" accesskey="n" rel="next">Integer Special Functions</a>, Previous: <a href="Integer-Import-and-Export.html#Integer-Import-and-Export" accesskey="p" rel="prev">Integer Import and Export</a>, Up: <a href="Integer-Functions.html#Integer-Functions" accesskey="u" rel="up">Integer Functions</a> [<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> </div> <hr> <a name="Miscellaneous-Functions"></a> <h3 class="section">5.15 Miscellaneous Functions</h3> <a name="index-Miscellaneous-integer-functions"></a> <a name="index-Integer-miscellaneous-functions"></a> <dl> <dt><a name="index-mpz_005ffits_005fulong_005fp"></a>Function: <em>int</em> <strong>mpz_fits_ulong_p</strong> <em>(const mpz_t <var>op</var>)</em></dt> <dt><a name="index-mpz_005ffits_005fslong_005fp"></a>Function: <em>int</em> <strong>mpz_fits_slong_p</strong> <em>(const mpz_t <var>op</var>)</em></dt> <dt><a name="index-mpz_005ffits_005fuint_005fp"></a>Function: <em>int</em> <strong>mpz_fits_uint_p</strong> <em>(const mpz_t <var>op</var>)</em></dt> <dt><a name="index-mpz_005ffits_005fsint_005fp"></a>Function: <em>int</em> <strong>mpz_fits_sint_p</strong> <em>(const mpz_t <var>op</var>)</em></dt> <dt><a name="index-mpz_005ffits_005fushort_005fp"></a>Function: <em>int</em> <strong>mpz_fits_ushort_p</strong> <em>(const mpz_t <var>op</var>)</em></dt> <dt><a name="index-mpz_005ffits_005fsshort_005fp"></a>Function: <em>int</em> <strong>mpz_fits_sshort_p</strong> <em>(const mpz_t <var>op</var>)</em></dt> <dd><p>Return non-zero iff the value of <var>op</var> fits in an <code>unsigned long int</code>, <code>signed long int</code>, <code>unsigned int</code>, <code>signed int</code>, <code>unsigned short int</code>, or <code>signed short int</code>, respectively. Otherwise, return zero. </p></dd></dl> <dl> <dt><a name="index-mpz_005fodd_005fp"></a>Macro: <em>int</em> <strong>mpz_odd_p</strong> <em>(const mpz_t <var>op</var>)</em></dt> <dt><a name="index-mpz_005feven_005fp"></a>Macro: <em>int</em> <strong>mpz_even_p</strong> <em>(const mpz_t <var>op</var>)</em></dt> <dd><p>Determine whether <var>op</var> is odd or even, respectively. Return non-zero if yes, zero if no. These macros evaluate their argument more than once. </p></dd></dl> <dl> <dt><a name="index-mpz_005fsizeinbase"></a>Function: <em>size_t</em> <strong>mpz_sizeinbase</strong> <em>(const mpz_t <var>op</var>, int <var>base</var>)</em></dt> <dd><a name="index-Size-in-digits"></a> <a name="index-Digits-in-an-integer"></a> <p>Return the size of <var>op</var> measured in number of digits in the given <var>base</var>. <var>base</var> can vary from 2 to 62. The sign of <var>op</var> is ignored, just the absolute value is used. The result will be either exact or 1 too big. If <var>base</var> is a power of 2, the result is always exact. If <var>op</var> is zero the return value is always 1. </p> <p>This function can be used to determine the space required when converting <var>op</var> to a string. The right amount of allocation is normally two more than the value returned by <code>mpz_sizeinbase</code>, one extra for a minus sign and one for the null-terminator. </p> <a name="index-Most-significant-bit"></a> <p>It will be noted that <code>mpz_sizeinbase(<var>op</var>,2)</code> can be used to locate the most significant 1 bit in <var>op</var>, counting from 1. (Unlike the bitwise functions which start from 0, See <a href="Integer-Logic-and-Bit-Fiddling.html#Integer-Logic-and-Bit-Fiddling">Logical and Bit Manipulation Functions</a>.) </p></dd></dl> <hr> <div class="header"> <p> Next: <a href="Integer-Special-Functions.html#Integer-Special-Functions" accesskey="n" rel="next">Integer Special Functions</a>, Previous: <a href="Integer-Import-and-Export.html#Integer-Import-and-Export" accesskey="p" rel="prev">Integer Import and Export</a>, Up: <a href="Integer-Functions.html#Integer-Functions" accesskey="u" rel="up">Integer Functions</a> [<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> </div> </body> </html>