ISLOWER(3)                  BSD Programmer's Manual                 ISLOWER(3)

NAME
     islower - lower-case character test

SYNOPSIS
     #include <ctype.h>

     int
     islower(int c)

DESCRIPTION
     The islower() function tests for any lower-case letter for which none of
     iscntrl(3),  isdigit(3),  ispunct(3),  or isspace(3) is true.  In the
     ``C'' locale, islower() returns true only for the characters defined as
     lower-case letters.

RETURN VALUES
     The islower() macro returns zero if the character tests false and returns
     non-zero if the character tests true.

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

STANDARDS
     The islower() function conforms to ANSI C3.159-1989 (``ANSI C'').

BSDI BSD/386                    March 26, 1993                               1