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6.23 wcsrchr—wide-character string scanning operation

Synopsis 

     #include <wchar.h>
     wchar_t *wcsrchr(const wchar_t *s, wchar_t c);

Description
The wcsrchr function locates the last occurrence of c in the wide-character string pointed to by s. The value of c must be a character representable as a type wchar_t and must be a wide-character code corresponding to a valid character in the current locale. The terminating null wide-character code is considered to be part of the wide-character string.
Returns
Upon successful completion, wcsrchr returns a pointer to the wide-character code or a null pointer if c does not occur in the wide-character string.
Portability
wcsrchr is ISO/IEC 9899/AMD1:1995 (ISO C).

No supporting OS subroutines are required.