TOWLOWER(3) OpenBSD Programmer's Manual TOWLOWER(3)NAMEtowlower - wide-character case letter conversion utilities
SYNOPSIS
#include <wctype.h>
wint_t
towlower(wint_t wc);
wint_t
towupper(wint_t wc);
DESCRIPTION
The towlower() function converts an upper-case wide character to the
corresponding lower-case letter. The towupper() function converts an
lower-case wide character to the corresponding upper-case letter.
RETURN VALUES
If the argument is an upper/lower-case letter, the tolower() function
returns the corresponding counterpart if there is one; otherwise the
argument is returned unchanged.
SEE ALSOtolower(3), toupper(3)STANDARDS
The functions conform to ISO/IEC 9899/AMD1:1995 (``ISO C90'') and ISO/IEC
9899:1999 (``ISO C99'').
OpenBSD 4.9 September 10, 2010 OpenBSD 4.9