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<?xml version="1.0" encoding="UTF-8"?>
<!--
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) INRIA -
*
* This file must be used under the terms of the CeCILL.
* This source file is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at
* http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
*
-->
<refentry xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:svg="http://www.w3.org/2000/svg" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:db="http://docbook.org/ns/docbook" xmlns:scilab="http://www.scilab.org" xml:lang="ja" xml:id="isdigit">
<refnamediv>
<refname>isdigit</refname>
<refpurpose>文字列の文字が0と9の間の数値であるかどうかを調べる</refpurpose>
</refnamediv>
<refsynopsisdiv>
<title>呼び出し手順</title>
<synopsis>res = isdigit(str)</synopsis>
</refsynopsisdiv>
<refsection>
<title>引数</title>
<variablelist>
<varlistentry>
<term>str</term>
<listitem>
<para>文字列.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>res</term>
<listitem>
<para>論理値の行列.</para>
</listitem>
</varlistentry>
</variablelist>
</refsection>
<refsection>
<title>説明</title>
<para>
<code>res = isdigit(str)</code> は,
<varname>str</varname>と同じ大きさの配列を返します.
配列の要素は,対応する<varname>str</varname>の要素が数値の場合に
論理値<constant>%t</constant> (TRUE),
それ以外の場合に論理値<constant>%f</constant> (FALSE)となります.
</para>
</refsection>
<refsection>
<title>例</title>
<programlisting role="example"><![CDATA[
s = 'A1,B2,C3';
isdigit(s)
]]></programlisting>
</refsection>
<refsection role="see also">
<title>参照</title>
<simplelist type="inline">
<member>
<link linkend="isalphanum">isalphanum</link>
</member>
<member>
<link linkend="isletter">isletter</link>
</member>
<member>
<link linkend="isnum">isnum</link>
</member>
</simplelist>
</refsection>
</refentry>
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