towlower, towlower_l—translate wide characters to lowercaseSynopsis
#include <wctype.h> wint_t towlower(wint_t c); #include <wctype.h> wint_t towlower_l(wint_t c, locale_t locale);
Description
towlower is a function which converts uppercase wide characters to
lowercase, leaving all other characters unchanged.
towlower_l is like towlower but performs the function based on the
locale specified by the locale object locale. If locale is
LC_GLOBAL_LOCALE or not a valid locale object, the behaviour is undefined.
Returns
towlower, towlower_l return the lowercase equivalent of c when it is a
uppercase wide character; otherwise, it returns the input character.
Portability
towlower is C99.
towlower_l is POSIX-1.2008.
No supporting OS subroutines are required.