NAME    [Toc]    [Back]

     tolower - upper case to lower case letter conversion

LIBRARY    [Toc]    [Back]

     Standard C Library (libc, -lc)

SYNOPSIS    [Toc]    [Back]

     #include <ctype.h>

     int
     tolower(int c);

DESCRIPTION    [Toc]    [Back]

     The tolower() function converts an upper-case letter to the corresponding
     lower-case letter.

RETURN VALUES    [Toc]    [Back]

     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.

SEE ALSO    [Toc]    [Back]

     isalnum(3), isalpha(3), isascii(3), iscntrl(3), isdigit(3), isgraph(3),
     islower(3), isprint(3), ispunct(3), isspace(3), isupper(3), isxdigit(3),
     stdio(3), toascii(3), toupper(3), ascii(7)

STANDARDS    [Toc]    [Back]

     The tolower() function conforms to ANSI X3.159-1989 (``ANSI C'').

BSD                              June 29, 1991                             BSD