1*22f7d534Sbostic.\" Copyright (c) 1991, 1993 2*22f7d534Sbostic.\" The Regents of the University of California. All rights reserved. 3b6d814a7Scael.\" 405c89e53Sbostic.\" This code is derived from software contributed to Berkeley by 505c89e53Sbostic.\" the American National Standards Committee X3, on Information 605c89e53Sbostic.\" Processing Systems. 705c89e53Sbostic.\" 8b6d814a7Scael.\" %sccs.include.redist.man% 9b6d814a7Scael.\" 10*22f7d534Sbostic.\" @(#)isupper.3 8.1 (Berkeley) 06/04/93 11b6d814a7Scael.\" 12b6d814a7Scael.Dd 13b6d814a7Scael.Dt ISUPPER 3 14b6d814a7Scael.Os 15b6d814a7Scael.Sh NAME 16b6d814a7Scael.Nm isupper 17b6d814a7Scael.Nd upper-case character test 18b6d814a7Scael.Sh SYNOPSIS 19b6d814a7Scael.Fd #include <ctype.h> 20b6d814a7Scael.Ft int 2105690998Sbostic.Fn isupper "int c"; 22b6d814a7Scael.Sh DESCRIPTION 23b6d814a7ScaelThe 24b6d814a7Scael.Fn isupper 2572dbba0eSbosticfunction tests for any upper-case letter. 2672dbba0eSbosticIn the ASCII character set, this includes the following characters: 2772dbba0eSbostic.sp 2872dbba0eSbostic.Bl -column \&000_``0''__ \&000_``0''__ \&000_``0''__ \&000_``0''__ \&000_``0''__ 2972dbba0eSbostic.It \&101\ ``A'' \t102\ ``B'' \t103\ ``C'' \t104\ ``D'' \t105\ ``E'' 3072dbba0eSbostic.It \&106\ ``F'' \t107\ ``G'' \t110\ ``H'' \t111\ ``I'' \t112\ ``J'' 3172dbba0eSbostic.It \&113\ ``K'' \t114\ ``L'' \t115\ ``M'' \t116\ ``N'' \t117\ ``O'' 3272dbba0eSbostic.It \&120\ ``P'' \t121\ ``Q'' \t122\ ``R'' \t123\ ``S'' \t124\ ``T'' 3372dbba0eSbostic.It \&125\ ``U'' \t126\ ``V'' \t127\ ``W'' \t130\ ``X'' \t131\ ``Y'' 3472dbba0eSbostic.It \&132\ ``Z'' 3572dbba0eSbostic.El 36b6d814a7Scael.Sh RETURN VALUES 37b6d814a7ScaelThe 38b6d814a7Scael.Fn isupper 39a8b77666Sbosticfunction returns zero if the character tests false and 40b6d814a7Scaelreturns non-zero if the character tests true. 41b6d814a7Scael.Sh SEE ALSO 42a8b77666Sbostic.Xr ctype 3 , 43b6d814a7Scael.Xr ascii 7 44b6d814a7Scael.Sh STANDARDS 45b6d814a7ScaelThe 46b6d814a7Scael.Xr isupper 47b6d814a7Scaelfunction conforms to 48b6d814a7Scael.St -ansiC . 49