mirror of
https://github.com/sigmasternchen/php-doc-en
synced 2025-03-29 07:18:55 +00:00
8932dc479a
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@333674 c90b9560-bf6c-de11-be94-00142212c4b1
88 lines
2.7 KiB
XML
88 lines
2.7 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
|
|
<!-- $Revision$ -->
|
|
|
|
<book xml:id="book.gmp" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
|
|
<?phpdoc extension-membership="bundledexternal" ?>
|
|
<title>GNU Multiple Precision</title>
|
|
<titleabbrev>GMP</titleabbrev>
|
|
|
|
<!-- {{{ preface -->
|
|
<preface xml:id="intro.gmp">
|
|
&reftitle.intro;
|
|
<simpara>
|
|
These functions allow you to work with arbitrary-length integers
|
|
using the GNU <acronym>MP</acronym> library.
|
|
</simpara>
|
|
<simpara>
|
|
These functions have been added in PHP 4.0.4.
|
|
</simpara>
|
|
<note>
|
|
<para>
|
|
Most GMP functions accept GMP number arguments. These are shown in this
|
|
documentation as <classname>GMP</classname> objects; however note that PHP
|
|
5.5 and earlier represented GMP numbers as <type>resource</type>s. Most
|
|
of these functions will also accept numeric and string arguments, so long
|
|
as it is possible to convert the latter to a number. Also, if there is a
|
|
faster function that can operate on integer arguments, it would be used
|
|
instead of the slower function when the supplied arguments are integers.
|
|
This is done transparently, so the bottom line is that you can use
|
|
integers in every function that expects GMP number. See also the
|
|
<function>gmp_init</function> function.
|
|
</para>
|
|
</note>
|
|
<note>
|
|
<para>
|
|
From PHP 5.6 onwards, you can use
|
|
<link linkend="language.operators.arithmetic">arithmetic</link>,
|
|
<link linkend="language.operators.bitwise">bitwise</link> and
|
|
<link linkend="language.operators.comparison">comparison</link> operators
|
|
with the <classname>GMP</classname> objects returned from
|
|
<function>gmp_init</function> and other GMP functions.
|
|
</para>
|
|
</note>
|
|
<warning>
|
|
<simpara>
|
|
If you want to explicitly specify a large integer,
|
|
specify it as a string. If you don't do that, PHP will
|
|
interpret the integer-literal first, possibly resulting
|
|
in loss of precision, even before <literal>GMP</literal>
|
|
comes into play.
|
|
</simpara>
|
|
</warning>
|
|
<note>
|
|
<simpara>
|
|
This extension is available on Windows platforms since PHP 5.1.0.
|
|
</simpara>
|
|
</note>
|
|
</preface>
|
|
<!-- }}} -->
|
|
|
|
&reference.gmp.setup;
|
|
&reference.gmp.constants;
|
|
&reference.gmp.examples;
|
|
&reference.gmp.reference;
|
|
&reference.gmp.gmp;
|
|
|
|
</book>
|
|
|
|
<!-- Keep this comment at the end of the file
|
|
Local variables:
|
|
mode: sgml
|
|
sgml-omittag:t
|
|
sgml-shorttag:t
|
|
sgml-minimize-attributes:nil
|
|
sgml-always-quote-attributes:t
|
|
sgml-indent-step:1
|
|
sgml-indent-data:t
|
|
indent-tabs-mode:nil
|
|
sgml-parent-document:nil
|
|
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
|
|
sgml-exposed-tags:nil
|
|
sgml-local-catalogs:nil
|
|
sgml-local-ecat-files:nil
|
|
End:
|
|
vim600: syn=xml fen fdm=syntax fdl=2 si
|
|
vim: et tw=78 syn=sgml
|
|
vi: ts=1 sw=1
|
|
-->
|
|
|