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
*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 is made NULL.
The strsep() function returns a pointer to the token, that is, it returns the original value of
For an explanation of the terms used in this section, see attributes(7).
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.
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