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authortedu <tedu@openbsd.org>2005-04-14 02:13:29 +0000
committertedu <tedu@openbsd.org>2005-04-14 02:13:29 +0000
commit522fa836b984a446cf9d17ee4e05dc5bf72208ec (patch)
tree4e0b39ff1dba2901bbb08c63e60d0952d2e79fd4 /lib/libc/stdlib
parentCorrect signed/unsigned mismatches in compatibility macros and add (diff)
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make it crystal clear that errstr is NULL after success
Diffstat (limited to 'lib/libc/stdlib')
-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