STRSEP(3) Linux Programmer's Manual STRSEP(3) NAME strsep - extract token from string SYNOPSIS #include <string.h> char *strsep(char **stringp, const char *delim); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): strsep(): _BSD_SOURCE DESCRIPTION If *stringp is NULL, the strsep() function returns NULL and does noth- ing 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. RETURN VALUE The strsep() function returns a pointer to the token, that is, it returns the original value of *stringp. ATTRIBUTES Multithreading (see pthreads(7)) The strsep() function is thread-safe. CONFORMING TO 4.4BSD. NOTES The strsep() function was introduced as a replacement for strtok(3), since the latter cannot handle empty fields. However, strtok(3) con- forms to C89/C99 and hence is more portable. BUGS 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. SEE ALSO index(3), memchr(3), rindex(3), strchr(3), string(3), strpbrk(3), str- spn(3), strstr(3), strtok(3) COLOPHON This page is part of release 3.74 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 http://www.kernel.org/doc/man-pages/. GNU 2014-02-25 STRSEP(3)
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