towlower() -- convert wide character to lowercase

SYNOPSIS

#include <wctype.h>

wint_t towlower(wint_t wc);

DESCRIPTION

The towlower() function converts an uppercase letter to the corresponding lowercase letter. The call towlower(wc) is equivalent to:

towctrans(wc, wctrans("tolower"));

PARAMETERS

wc: Is a wide character code corresponding to a valid character in the current locale or the value of the macro WEOF.

If the parameter is a wide character for which iswupper() is true and there is a corresponding wide character for which iswlower() is true, the towlower() function returns the corresponding wide character. Otherwise, the parameter is returned unchanged.