|WCSTOK(3)||Library Functions Manual||WCSTOK(3)|
* restrict str, const
wchar_t * restrict sep,
wchar_t ** restrict
wcstok() function is used to isolate sequential tokens in a NUL-terminated wide-character string, str. These tokens are separated in the string by at least one of the characters in sep. The first time that
wcstok() is called, str should be specified; subsequent calls, wishing to obtain further tokens from the same string, should pass a null pointer instead. The separator string, sep, must be supplied each time, and may change between calls. The context pointer last must be provided on each call.
wcstok() function is the
wide-character counterpart of the
wcstok() modifies the string,
str should not point to an area in the initialized
wcstok() function returns a pointer to the beginning of each subsequent token in the string, after replacing the token itself with a NUL wide character (L'\0'). When no more tokens remain, a null pointer is returned.
const wchar_t *seps = L" \t\n"; wchar_t *last, *tok, text = L" \none\ttwo\t\tthree \n"; for (tok = wcstok(text, seps, &last); tok != NULL; tok = wcstok(NULL, seps, &last)) wprintf(L"%ls\n", tok);
wcstok() function conforms to ISO/IEC 9899:1999 (“ISO C99”).
wcstok() function was ported from NetBSD and first appeared in OpenBSD 3.8.
Some early implementations of
omit the context pointer argument, last, and maintain
state across calls in a static variable like
|July 25, 2011||OpenBSD-current|