diff options
Diffstat (limited to 'lib/libc/stdio')
| -rw-r--r-- | lib/libc/stdio/putc.3 | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/lib/libc/stdio/putc.3 b/lib/libc/stdio/putc.3 index 0d1102c1322..ee046bca430 100644 --- a/lib/libc/stdio/putc.3 +++ b/lib/libc/stdio/putc.3 @@ -1,4 +1,4 @@ -.\" $OpenBSD: putc.3,v 1.8 2005/07/26 03:30:25 jaredy Exp $ +.\" $OpenBSD: putc.3,v 1.9 2007/05/12 22:35:34 ray Exp $ .\" .\" Copyright (c) 1990, 1991, 1993 .\" The Regents of the University of California. All rights reserved. @@ -92,13 +92,27 @@ and return the character written. If an error occurs, the value .Dv EOF -is returned. +is returned and the global variable +.Va errno +is set to indicate the error. The .Fn putw function returns 0 on success; .Dv EOF is returned if a write error occurs, or if an attempt is made to write a read-only stream. +The global variable +.Va errno +may be set to indicate the error. +.Sh ERRORS +The function +.Fn putw +may also fail and set +.Va errno +for any of the errors specified for the routines +.Xr write 2 +or +.Xr realloc 3 . .Sh SEE ALSO .Xr ferror 3 , .Xr fopen 3 , |