1*61137Sbostic.\" Copyright (c) 1991, 1993 2*61137Sbostic.\" The Regents of the University of California. All rights reserved. 348907Scael.\" 450304Sbostic.\" This code is derived from software contributed to Berkeley by 550304Sbostic.\" the American National Standards Committee X3, on Information 650304Sbostic.\" Processing Systems. 750304Sbostic.\" 848907Scael.\" %sccs.include.redist.man% 948907Scael.\" 10*61137Sbostic.\" @(#)islower.3 8.1 (Berkeley) 06/04/93 1148907Scael.\" 1248907Scael.Dd 1348907Scael.Dt ISLOWER 3 1448907Scael.Os 1548907Scael.Sh NAME 1648907Scael.Nm islower 1748907Scael.Nd lower-case character test 1848907Scael.Sh SYNOPSIS 1948907Scael.Fd #include <ctype.h> 2048907Scael.Ft int 2151387Sbostic.Fn islower "int c"; 2248907Scael.Sh DESCRIPTION 2348907ScaelThe 2448907Scael.Fn islower 2551409Sbosticfunction tests for any lower-case letters. 2651409SbosticIn the ASCII character set, this includes the following characters: 2751409Sbostic.sp 2851409Sbostic.Bl -column \&000_``0''__ \&000_``0''__ \&000_``0''__ \&000_``0''__ \&000_``0''__ 2951409Sbostic.It \&141\ ``a'' \t142\ ``b'' \t143\ ``c'' \t144\ ``d'' \t145\ ``e'' 3051409Sbostic.It \&146\ ``f'' \t147\ ``g'' \t150\ ``h'' \t151\ ``i'' \t152\ ``j'' 3151409Sbostic.It \&153\ ``k'' \t154\ ``l'' \t155\ ``m'' \t156\ ``n'' \t157\ ``o'' 3251409Sbostic.It \&160\ ``p'' \t161\ ``q'' \t162\ ``r'' \t163\ ``s'' \t164\ ``t'' 3351409Sbostic.It \&165\ ``u'' \t166\ ``v'' \t167\ ``w'' \t170\ ``x'' \t171\ ``y'' 3451409Sbostic.It \&172\ ``z'' 3551409Sbostic.El 3648907Scael.Sh RETURN VALUES 3748907ScaelThe 3848907Scael.Fn islower 3951387Sbosticfunction returns zero if the character tests false and 4048907Scaelreturns non-zero if the character tests true. 4148907Scael.Sh SEE ALSO 4251387Sbostic.Xr ctype 3 , 4348907Scael.Xr ascii 7 4448907Scael.Sh STANDARDS 4548907ScaelThe 4648907Scael.Fn islower 4748907Scaelfunction conforms to 4848907Scael.St -ansiC . 49