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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | CONFORMING TO | NOTES | BUGS | SEE ALSO | COLOPHON |
STRSEP(3) Linux Programmer's Manual STRSEP(3)
strsep - extract token from string
#include <string.h>
char *strsep(char **stringp, const char *delim);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
strsep():
Since glibc 2.19:
_DEFAULT_SOURCE
Glibc 2.19 and earlier:
_BSD_SOURCE
If *stringp is NULL, the strsep() function returns NULL and does
nothing else. Otherwise, this function finds the first token in the
string *stringp, that is delimited by one of the bytes in the string
delim. This token is terminated by overwriting the delimiter with a
null byte ('\0'), and *stringp is updated to point past the token.
In case no delimiter was found, the token is taken to be the entire
string *stringp, and *stringp is made NULL.
The strsep() function returns a pointer to the token, that is, it
returns the original value of *stringp.
For an explanation of the terms used in this section, see
attributes(7).
┌──────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────┼───────────────┼─────────┤
│strsep() │ Thread safety │ MT-Safe │
└──────────┴───────────────┴─────────┘
4.4BSD.
The strsep() function was introduced as a replacement for strtok(3),
since the latter cannot handle empty fields. However, strtok(3)
conforms to C89/C99 and hence is more portable.
Be cautious when using this function. If you do use it, note that:
* This function modifies its first argument.
* This function cannot be used on constant strings.
* The identity of the delimiting character is lost.
index(3), memchr(3), rindex(3), strchr(3), string(3), strpbrk(3),
strspn(3), strstr(3), strtok(3)
This page is part of release 4.12 of the Linux man-pages project. A
description of the project, information about reporting bugs, and the
latest version of this page, can be found at
https://www.kernel.org/doc/man-pages/.
GNU 2016-03-15 STRSEP(3)
Pages that refer to this page: index(3), memchr(3), strchr(3), string(3), strpbrk(3), strspn(3), strstr(3), strtok(3)