1STRDUP(3P) POSIX Programmer's Manual STRDUP(3P)
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6 This manual page is part of the POSIX Programmer's Manual. The Linux
7 implementation of this interface may differ (consult the corresponding
8 Linux manual page for details of Linux behavior), or the interface may
9 not be implemented on Linux.
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12 strdup - duplicate a string
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15 #include <string.h>
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17 char *strdup(const char *s1);
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21 The strdup() function shall return a pointer to a new string, which is
22 a duplicate of the string pointed to by s1. The returned pointer can
23 be passed to free(). A null pointer is returned if the new string can‐
24 not be created.
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27 The strdup() function shall return a pointer to a new string on suc‐
28 cess. Otherwise, it shall return a null pointer and set errno to indi‐
29 cate the error.
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32 The strdup() function may fail if:
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34 ENOMEM Storage space available is insufficient.
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37 The following sections are informative.
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40 None.
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43 None.
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46 None.
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49 None.
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52 free(), malloc(), the Base Definitions volume of IEEE Std 1003.1-2001,
53 <string.h>
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56 Portions of this text are reprinted and reproduced in electronic form
57 from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
58 -- Portable Operating System Interface (POSIX), The Open Group Base
59 Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
60 Electrical and Electronics Engineers, Inc and The Open Group. In the
61 event of any discrepancy between this version and the original IEEE and
62 The Open Group Standard, the original IEEE and The Open Group Standard
63 is the referee document. The original Standard can be obtained online
64 at http://www.opengroup.org/unix/online.html .
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68IEEE/The Open Group 2003 STRDUP(3P)