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| author |   millert <millert@openbsd.org> | 2005-03-24 15:15:31 +0000 |
|---|---|---|
| committer | millert <millert@openbsd.org> | 2005-03-24 15:15:31 +0000 |
| commit | d0a82e17dac88cde6f67ef56b3d5243e983e59d9 (patch) | |
| tree | 16a279efd16b24d400f9c355232c6fc56b2d1486 /lib/libc/stdio/perror.3 | |
| parent | one more fatal/fatalx, alexander (diff) | |
| download | wireguard-openbsd-d0a82e17dac88cde6f67ef56b3d5243e983e59d9.tar.xz wireguard-openbsd-d0a82e17dac88cde6f67ef56b3d5243e983e59d9.zip | |
Document that perror() treats an empty string like NULL.
Diffstat (limited to 'lib/libc/stdio/perror.3')
| -rw-r--r-- | lib/libc/stdio/perror.3 | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/lib/libc/stdio/perror.3 b/lib/libc/stdio/perror.3 index b7f0ff4af3d..becb2e4a57d 100644 --- a/lib/libc/stdio/perror.3 +++ b/lib/libc/stdio/perror.3 @@ -1,4 +1,4 @@ -.\" $OpenBSD: perror.3,v 1.6 2003/06/02 20:18:37 millert Exp $ +.\" $OpenBSD: perror.3,v 1.7 2005/03/24 15:15:31 millert Exp $ .\" .\" Copyright (c) 1980, 1991 Regents of the University of California. .\" All rights reserved. @@ -50,14 +50,12 @@ standard error stream. .Pp If the argument .Fa string -is non-null it is prepended to the message string and separated from it by -a colon and a space -.Pq Ql \&:\ \& . -If -.Fa string -is +is not the .Dv NULL -only the error message string is printed. +pointer and is not zero length, it is prepended to the message string and +separated from it by a colon and a space +.Pq Ql \&:\ \& . +Otherwise, only the error message string is printed. .Pp The contents of the error message string are the same as those returned by .Fn strerror |