NAME

_tolower - transliterate upper-case characters to lower-case

 SYNOPSIS

#include <ctype.h>

int _tolower(int c);

 DESCRIPTION

The _tolower() macro is equivalent to tolower(c) except that the argument c must be an upper-case letter.

 RETURN VALUE

On successful completion, _tolower() returns the lower-case letter corresponding to the argument passed.

 ERRORS

No errors are defined.

 EXAMPLES

None.

 APPLICATION USAGE

None.

 FUTURE DIRECTIONS

None.

 SEE ALSO

tolower(), isupper(), <ctype.h>, the XBD specification, Locale .

DERIVATION

Derived from Issue 1 of the SVID.