mirror of
https://github.com/sigmasternchen/php-doc-en
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f6cb40a805
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@152424 c90b9560-bf6c-de11-be94-00142212c4b1
69 lines
1.8 KiB
XML
69 lines
1.8 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.5 $ -->
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<!-- splitted from ./en/functions/gmp.xml, last change in rev 1.1 -->
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<refentry id="function.gmp-scan1">
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<refnamediv>
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<refname>gmp_scan1</refname>
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<refpurpose>Scan for 1</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>int</type><methodname>gmp_scan1</methodname>
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<methodparam><type>resource</type><parameter>a</parameter></methodparam>
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<methodparam><type>int</type><parameter>start</parameter></methodparam>
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</methodsynopsis>
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<para>
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Scans <parameter>a</parameter>, starting with bit
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<parameter>start</parameter>, towards more significant bits,
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until the first set bit is found. Returns the index of the found
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bit. If no set bit is found, -1 is returned.
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</para>
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<example>
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<title><function>gmp_scan1</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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// "1" bit is found at position 3. index starts at 0
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$s1 = gmp_init("01000", 2);
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echo gmp_scan1($s1, 0) . "\n";
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// "1" bit is found at position 9. index starts at 5
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$s2 = gmp_init("01000001111", 2);
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echo gmp_scan1($s2, 5) . "\n";
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?>
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]]>
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</programlisting>
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<para>
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The printout of the above program will be:
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</para>
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<screen>
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<![CDATA[
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3
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9
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]]>
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</screen>
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</example>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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