diff options
Diffstat (limited to 'lib/libc/gen/isupper.3')
| -rw-r--r-- | lib/libc/gen/isupper.3 | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/lib/libc/gen/isupper.3 b/lib/libc/gen/isupper.3 index bdaf741f0ee..c2d31dfcad5 100644 --- a/lib/libc/gen/isupper.3 +++ b/lib/libc/gen/isupper.3 @@ -1,4 +1,4 @@ -.\" $OpenBSD: isupper.3,v 1.6 1999/07/09 13:35:18 aaron Exp $ +.\" $OpenBSD: isupper.3,v 1.7 2001/06/25 03:24:04 pjanzen Exp $ .\" .\" Copyright (c) 1991 The Regents of the University of California. .\" All rights reserved. @@ -87,3 +87,11 @@ The .Xr isupper function conforms to .St -ansiC . +.Sh CAVEATS +The argument to +.Fn isupper +must be +.Dv EOF +or representable as an +.Li unsigned char ; +otherwise, the result is undefined. |