strdup man page on Archlinux

Man page or keyword search:  
man Server   11224 pages
apropos Keyword Search (all sections)
Output format
Archlinux logo
[printable version]

STRDUP(3)		   Linux Programmer's Manual		     STRDUP(3)

       strdup, strndup, strdupa, strndupa - duplicate a string

       #include <string.h>

       char *strdup(const char *s);

       char *strndup(const char *s, size_t n);
       char *strdupa(const char *s);
       char *strndupa(const char *s, size_t n);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

	   || /* Since glibc 2.12: */ _POSIX_C_SOURCE >= 200809L
	   Since glibc 2.10:
	       _POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700
	   Before glibc 2.10:
       strdupa(), strndupa(): _GNU_SOURCE

       The strdup() function returns a pointer to a  new  string  which	 is  a
       duplicate  of the string s.  Memory for the new string is obtained with
       malloc(3), and can be freed with free(3).

       The strndup() function is similar, but copies at most n bytes.  If s is
       longer  than  n,	 only  n bytes are copied, and a terminating null byte
       ('\0') is added.

       strdupa() and strndupa() are similar, but use alloca(3) to allocate the
       buffer.	They are available only when using the GNU GCC suite, and suf‐
       fer from the same limitations described in alloca(3).

       On success, the strdup() function returns a pointer to  the  duplicated
       string.	 It  returns  NULL  if insufficient memory was available, with
       errno set to indicate the cause of the error.

       ENOMEM Insufficient memory available to allocate duplicate string.

       strdup() conforms to SVr4, 4.3BSD, POSIX.1-2001.	 strndup() conforms to
       POSIX.1-2008.  strdupa() and strndupa() are GNU extensions.

       alloca(3),  calloc(3),  free(3), malloc(3), realloc(3), string(3), wcs‐

       This page is part of release 3.65 of the Linux  man-pages  project.   A
       description  of	the project, and information about reporting bugs, can
       be found at

GNU				  2013-04-19			     STRDUP(3)

List of man pages available for Archlinux

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
Vote for polarhome
Free Shell Accounts :: the biggest list on the net