ISLOWER(3)                OpenBSD 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 or non-zero
     if the character tests true.

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

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

OpenBSD 2.6                      June 29, 1991                               1