Linux 2.6 - man page for strdup (linux section 3posix)
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STRDUP(P) POSIX Programmer's Manual STRDUP(P)
strdup - duplicate a string
char *strdup(const char *s1);
The strdup() function shall return a pointer to a new string, which is a duplicate of the
string pointed to by s1. The returned pointer can be passed to free(). A null pointer is
returned if the new string cannot be created.
The strdup() function shall return a pointer to a new string on success. Otherwise, it
shall return a null pointer and set errno to indicate the error.
The strdup() function may fail if:
ENOMEM Storage space available is insufficient.
The following sections are informative.
free() , malloc() , the Base Definitions volume of IEEE Std 1003.1-2001, <string.h>
Portions of this text are reprinted and reproduced in electronic form from IEEE Std
1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System
Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by
the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the
event of any discrepancy between this version and the original IEEE and The Open Group
Standard, the original IEEE and The Open Group Standard is the referee document. The orig-
inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .
IEEE/The Open Group 2003 STRDUP(P)
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