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<!DOCTYPE html>
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<h1>verify
<small>Interface</small>
</h1>
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<a class="list-group-item" href="../interface/verify.html#moduleprocedure-verify_string_string">verify_string_string</a>
<a class="list-group-item" href="../interface/verify.html#moduleprocedure-verify_string_char">verify_string_char</a>
<a class="list-group-item" href="../interface/verify.html#moduleprocedure-verify_char_string">verify_char_string</a>
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<h2>public interface verify</h2>
<p>Scan a string for the absence of a set of characters. Verifies that all
the characters in string belong to the set of characters in set.</p>
<p>If <em>back</em> is either absent or <em>false</em>, this function returns the position
of the leftmost character of <em>string</em> that is not in <em>set</em>. If <em>back</em> is <em>true</em>,
the rightmost position is returned. If all characters of <em>string</em> are found
in <em>set</em>, the result is zero.</p>
<p>This method is elemental and returns a default integer scalar value.</p>
<br>
<section class="visible-xs visible-sm hidden-md">
<h3>Contents</h3>
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<h2>Module Procedures</h2>
<div class="panel panel-default">
<div class="panel-heading codesum"><span class="anchor" id="proc-verify_string_string"></span><h3>
private elemental function verify_string_string(string, set, back) result(pos)
</h3></div>
<div class="panel-body">
<p>Verify a character sequence for the absence any of the characters in
a set of characters. In this version both the character sequence and
the character set are represented by a string.</p>
<h4>Arguments</h4>
<table class="table table-striped varlist">
<thead><tr><th>Type</th>
<th>Intent</th><th>Optional</th>
<th>Attributes</th><th></th><th>Name</th><th></th></thead>
<tbody>
<tr>
<td><span class="anchor" ></span>type(<a href='../type/string_type.html'>string_type</a>),</td>
<td>intent(in)</td>
<td></td>
<td></td><td>::</td>
<td><strong>string</strong></td><td></td>
</tr>
<tr>
<td><span class="anchor" ></span>type(<a href='../type/string_type.html'>string_type</a>),</td>
<td>intent(in)</td>
<td></td>
<td></td><td>::</td>
<td><strong>set</strong></td><td></td>
</tr>
<tr>
<td><span class="anchor" ></span>logical,</td>
<td>intent(in),</td>
<td>optional</td>
<td></td><td>::</td>
<td><strong>back</strong></td><td></td>
</tr>
</tbody>
</table>
<h4>Return Value <small>integer
</small></h4>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading codesum"><span class="anchor" id="proc-verify_string_char"></span><h3>
private elemental function verify_string_char(string, set, back) result(pos)
</h3></div>
<div class="panel-body">
<p>Verify a character sequence for the absence any of the characters in
a set of characters. In this version the character sequences is
represented by a string.</p>
<h4>Arguments</h4>
<table class="table table-striped varlist">
<thead><tr><th>Type</th>
<th>Intent</th><th>Optional</th>
<th>Attributes</th><th></th><th>Name</th><th></th></thead>
<tbody>
<tr>
<td><span class="anchor" ></span>type(<a href='../type/string_type.html'>string_type</a>),</td>
<td>intent(in)</td>
<td></td>
<td></td><td>::</td>
<td><strong>string</strong></td><td></td>
</tr>
<tr>
<td><span class="anchor" ></span>character(len=*),</td>
<td>intent(in)</td>
<td></td>
<td></td><td>::</td>
<td><strong>set</strong></td><td></td>
</tr>
<tr>
<td><span class="anchor" ></span>logical,</td>
<td>intent(in),</td>
<td>optional</td>
<td></td><td>::</td>
<td><strong>back</strong></td><td></td>
</tr>
</tbody>
</table>
<h4>Return Value <small>integer
</small></h4>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading codesum"><span class="anchor" id="proc-verify_char_string"></span><h3>
private elemental function verify_char_string(string, set, back) result(pos)
</h3></div>
<div class="panel-body">
<p>Verify a character sequence for the absence any of the characters in
a set of characters. In this version the set of characters is
represented by a string.</p>
<h4>Arguments</h4>
<table class="table table-striped varlist">
<thead><tr><th>Type</th>
<th>Intent</th><th>Optional</th>
<th>Attributes</th><th></th><th>Name</th><th></th></thead>
<tbody>
<tr>
<td><span class="anchor" ></span>character(len=*),</td>
<td>intent(in)</td>
<td></td>
<td></td><td>::</td>
<td><strong>string</strong></td><td></td>
</tr>
<tr>
<td><span class="anchor" ></span>type(<a href='../type/string_type.html'>string_type</a>),</td>
<td>intent(in)</td>
<td></td>
<td></td><td>::</td>
<td><strong>set</strong></td><td></td>
</tr>
<tr>
<td><span class="anchor" ></span>logical,</td>
<td>intent(in),</td>
<td>optional</td>
<td></td><td>::</td>
<td><strong>back</strong></td><td></td>
</tr>
</tbody>
</table>
<h4>Return Value <small>integer
</small></h4>
</div>
</div>
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