libc.info: wcscmp

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`wcscmp'--compare two wide-character strings

*Synopsis*
     #include <wchar.h>
     int wcscmp(const wchar_t *S1, *S2);
   *Description*
The `wcscmp' function compares the wide-character string pointed to by
S1 to the wide-character string pointed to by S2.
   The sign of a non-zero return value is determined by the sign of the
difference between the values of the first pair of wide-character codes
that differ in the objects being compared.
*Returns*
Upon completion, `wcscmp' returns an integer greater than, equal to or
less than 0, if the wide-character string pointed to by S1 is greater
than, equal to or less than the wide-character string pointed to by S2
respectively.
*Portability*
`wcscmp' is ISO/IEC 9899/AMD1:1995 (ISO C).  No supporting OS
subroutines are required.