tolower
- upper case to lower case letter conversion
LIBRARY
Lb libc
SYNOPSIS
#include <ctype.h> int
tolower (int c);
DESCRIPTION
The
tolower ();
function converts an upper-case letter to the corresponding lower-case
letter.
The argument must be representable as an
Vt unsigned char
or the value of
EOF
RETURN VALUES
If the argument is an upper-case letter, the
tolower ();
function returns the corresponding lower-case letter if there is
one; otherwise the argument is returned unchanged.
COMPATIBILITY
The
BSD 4.4
extension of accepting arguments outside of the range of the
Vt unsigned char
type in locales with large character sets is considered obsolete
and may not be supported in future releases.
The
towlower ();
function should be used instead.
