Section (3) memmem
memmem — locate a substring
#define _GNU_SOURCE /* See feature_test_macros(7) */ #include <string.h>
||const void *haystack,|
|const void *needle,|
memmem() function finds
the start of the first occurrence of the substring
needle of length
needlelen in the memory area
haystack of length
returns a pointer to the beginning of the substring, or NULL
if the substring is not found.
For an explanation of the terms used in this section, see attributes(7).
This function is not specified in POSIX.1, but is present on a number of other systems.
In glibc 2.0, if
needle is empty,
memmem() returns a pointer to the last byte
haystack. This is
fixed in glibc 2.1.
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Copyright 1993 David Metcalfe (davidprism.demon.co.uk)
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Linux libc source code
386BSD man pages
Modified Sat Jul 24 18:50:48 1993 by Rik Faith (faithcs.unc.edu)
Interchanged _zsingle_quotesz_needle_zsingle_quotesz_ and _zsingle_quotesz_haystack_zsingle_quotesz_; added history, aeb, 980113.