towlower

Converts the argument, a wide-character code, to lowercase. If the argument is not an uppercase character, it is returned unchanged.

Format

#include  <wctype.h> (ISO C)

#include  <wchar.h> (XPG4)

int towlower  (wint_t wc);

Arguments

wc: An object of type wint_t representable as a valid wide character in the current locale, or the value of WEOF. For any other value, the behavior is undefined.

Description

If the argument is an uppercase wide character, the corresponding lowercase wide character (as defined in the LC_CTYPE category of the locale) is returned, if it exists. If it does not exist, the function returns the input argument unchanged.

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