From: Ralph Corderoy <ralph@inputplus.co.uk>
Date: Wed, 19 Oct 2016 17:44:58 +0000 (+0100)
Subject: Add comment describing concat().
X-Git-Url: https://diplodocus.org/git/nmh/commitdiff_plain/ad098559d2ee9ed3c176be7d33e6583a573ffc96?ds=inline

Add comment describing concat().
---

diff --git a/sbr/concat.c b/sbr/concat.c
index f5cf1aea..234d1751 100644
--- a/sbr/concat.c
+++ b/sbr/concat.c
@@ -12,6 +12,11 @@
 #include <h/utils.h>
 
 
+/* concat returns a non-NULL malloc'd pointer to the catenation of the
+ * argument strings less their NUL terminators other than the last.  The
+ * arguments are terminated by a NULL.
+ *
+ * Example:  concat("abc", "def", "", "g", NULL) returns "abcdefg". */
 char *
 concat (const char *s1, ...)
 {