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authorTed Unangst <tedu@cvs.openbsd.org>2005-04-14 02:13:30 +0000
committerTed Unangst <tedu@cvs.openbsd.org>2005-04-14 02:13:30 +0000
commit86f056093e4bd0009c6f251112e67a01218e5c5c (patch)
tree45d8dd78084890451f4c19a3c277a2d76bd35361
parent9609b6d4441f0f950da1655f5f1a6817463c3563 (diff)
make it crystal clear that errstr is NULL after success
-rw-r--r--lib/libc/stdlib/strtonum.35
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/libc/stdlib/strtonum.3 b/lib/libc/stdlib/strtonum.3
index 08c58b256ed..ef089da071e 100644
--- a/lib/libc/stdlib/strtonum.3
+++ b/lib/libc/stdlib/strtonum.3
@@ -1,4 +1,4 @@
-.\" $OpenBSD: strtonum.3,v 1.9 2005/02/07 08:54:59 jmc Exp $
+.\" $OpenBSD: strtonum.3,v 1.10 2005/04/14 02:13:29 tedu Exp $
.\"
.\" Copyright (c) 2004 Ted Unangst
.\"
@@ -80,6 +80,9 @@ unless the value would exceed the provided bounds or is invalid.
On error, 0 is returned and
.Fa errstr
will point to an error message.
+.Fa *errstr
+will be set to NULL on success; this fact can be used to differentiate
+a successful return of 0 from an error.
.Sh EXAMPLES
Using
.Fn strtonum