Wide character string search subroutines

The following multicultural support subroutines are used to search for wide character strings:

wcschr

Searches for the first occurrence of a wide character in a wide character string.

wcsrchr

Searches for the last occurrence of a wide character in a wide character string.

wcspbrk

Searches for the first occurrence of several wide characters in a wide character string.

wcsspn

Determines the number of wide characters in the initial segment of a wide character string.

wcscspn

Searches for a wide character string.

wcswcs

Searches for the first occurrence of a wide character string within another wide character string.

wcstok

Breaks a wide character string into a sequence of separate wide character strings.