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WCSTOK(3)			   BSD Library Functions Manual 			WCSTOK(3)

     wcstok -- split wide-character string into tokens

     Standard C Library (libc, -lc)

     #include <wchar.h>

     wchar_t *
     wcstok(wchar_t * restrict str, const wchar_t * restrict sep, wchar_t ** restrict last);

     The wcstok() function is used to isolate sequential tokens in a nul-terminated wide-charac-
     ter 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.

     The wcstok() function is the wide-character counterpart of the strtok_r() function.

     The 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.

     The following code fragment splits a wide-character string on ASCII space, tab and newline
     characters and writes the tokens to standard output:

	   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);

     strtok(3), wcschr(3), wcscspn(3), wcspbrk(3), wcsrchr(3), wcsspn(3)

     The wcstok() function conforms to ISO/IEC 9899:1999 (``ISO C99'').

     Some early implementations of wcstok() omit the context pointer argument, last, and maintain
     state across calls in a static variable like strtok(3) does.

BSD					 October 3, 2002				      BSD
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