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  47. <a name="remove"></a>
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  53. <a name="remove_002d_002d_002ddelete-a-file_0027s-name"></a>
  54. <h3 class="section">4.52 <code>remove</code>&mdash;delete a file&rsquo;s name</h3>
  55. <a name="index-remove"></a>
  56. <a name="index-_005fremove_005fr"></a>
  57. <p><strong>Synopsis</strong>
  58. </p><div class="example">
  59. <pre class="example">#include &lt;stdio.h&gt;
  60. int remove(char *<var>filename</var>);
  61. int _remove_r(struct _reent *<var>reent</var>, char *<var>filename</var>);
  62. </pre></div>
  63. <p><strong>Description</strong><br>
  64. Use <code>remove</code> to dissolve the association between a particular
  65. filename (the string at <var>filename</var>) and the file it represents.
  66. After calling <code>remove</code> with a particular filename, you will no
  67. longer be able to open the file by that name.
  68. </p>
  69. <p>In this implementation, you may use <code>remove</code> on an open file without
  70. error; existing file descriptors for the file will continue to access
  71. the file&rsquo;s data until the program using them closes the file.
  72. </p>
  73. <p>The alternate function <code>_remove_r</code> is a reentrant version. The
  74. extra argument <var>reent</var> is a pointer to a reentrancy structure.
  75. </p>
  76. <br>
  77. <p><strong>Returns</strong><br>
  78. <code>remove</code> returns <code>0</code> if it succeeds, <code>-1</code> if it fails.
  79. </p>
  80. <br>
  81. <p><strong>Portability</strong><br>
  82. ANSI C requires <code>remove</code>, but only specifies that the result on
  83. failure be nonzero. The behavior of <code>remove</code> when you call it on an
  84. open file may vary among implementations.
  85. </p>
  86. <p>Supporting OS subroutine required: <code>unlink</code>.
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