LEN.html 5.3 KB

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  68. <a name="LEN-_002d_002d_002d-Length-of-a-character-entity"></a>
  69. <h3 class="section">9.166 <code>LEN</code> &mdash; Length of a character entity</h3>
  70. <a name="index-LEN"></a>
  71. <a name="index-string_002c-length"></a>
  72. <dl compact="compact">
  73. <dt><em>Description</em>:</dt>
  74. <dd><p>Returns the length of a character string. If <var>STRING</var> is an array,
  75. the length of an element of <var>STRING</var> is returned. Note that
  76. <var>STRING</var> need not be defined when this intrinsic is invoked, since
  77. only the length, not the content, of <var>STRING</var> is needed.
  78. </p>
  79. </dd>
  80. <dt><em>Standard</em>:</dt>
  81. <dd><p>Fortran 77 and later, with <var>KIND</var> argument Fortran 2003 and later
  82. </p>
  83. </dd>
  84. <dt><em>Class</em>:</dt>
  85. <dd><p>Inquiry function
  86. </p>
  87. </dd>
  88. <dt><em>Syntax</em>:</dt>
  89. <dd><p><code>L = LEN(STRING [, KIND])</code>
  90. </p>
  91. </dd>
  92. <dt><em>Arguments</em>:</dt>
  93. <dd><table>
  94. <tr><td width="15%"><var>STRING</var></td><td width="70%">Shall be a scalar or array of type
  95. <code>CHARACTER</code>, with <code>INTENT(IN)</code></td></tr>
  96. <tr><td width="15%"><var>KIND</var></td><td width="70%">(Optional) An <code>INTEGER</code> initialization
  97. expression indicating the kind parameter of the result.</td></tr>
  98. </table>
  99. </dd>
  100. <dt><em>Return value</em>:</dt>
  101. <dd><p>The return value is of type <code>INTEGER</code> and of kind <var>KIND</var>. If
  102. <var>KIND</var> is absent, the return value is of default integer kind.
  103. </p>
  104. </dd>
  105. <dt><em>Specific names</em>:</dt>
  106. <dd><table>
  107. <tr><td width="20%">Name</td><td width="20%">Argument</td><td width="20%">Return type</td><td width="25%">Standard</td></tr>
  108. <tr><td width="20%"><code>LEN(STRING)</code></td><td width="20%"><code>CHARACTER</code></td><td width="20%"><code>INTEGER</code></td><td width="25%">Fortran 77 and later</td></tr>
  109. </table>
  110. </dd>
  111. <dt><em>See also</em>:</dt>
  112. <dd><p><a href="LEN_005fTRIM.html#LEN_005fTRIM">LEN_TRIM</a>, <a href="ADJUSTL.html#ADJUSTL">ADJUSTL</a>, <a href="ADJUSTR.html#ADJUSTR">ADJUSTR</a>
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