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+/* concatn.c: concatenate an arbitrary number of strings.
+
+ Copyright 1993, 1995, 2008, 2009 Karl Berry.
+ Copyright 1999, 2005 Olaf Weber.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this library; if not, see <http://www.gnu.org/licenses/>. */
+
+#include <kpathsea/config.h>
+
+#include <kpathsea/concatn.h>
+
+
+/* OK, it would be epsilon more efficient to compute the total length
+ and then do the copying ourselves, but I doubt it matters in reality. */
+
+string
+concatn (const_string str1, ...)
+{
+ string arg;
+ string ret;
+ va_list ap;
+
+ if (!str1)
+ return NULL;
+
+ ret = xstrdup (str1);
+
+ va_start (ap, str1);
+ while ((arg = va_arg (ap, string)) != NULL)
+ {
+ string temp = concat (ret, arg);
+ free (ret);
+ ret = temp;
+ }
+ va_end (ap);
+
+ return ret;
+}
+
+#ifdef TEST
+int
+main ()
+{
+ printf ("null = \"%s\"\n", concatn (NULL));
+ printf ("\"a\" = \"%s\"\n", concatn ("a", NULL));
+ printf ("\"ab\" = \"%s\"\n", concatn ("a", "b", NULL));
+ printf ("\"abc\" = \"%s\"\n", concatn ("a", "b", "c", NULL));
+ printf ("\"abcd\" = \"%s\"\n", concatn ("ab", "cd", NULL));
+ printf ("\"abcde\" = \"%s\"\n", concatn ("ab", "c", "de", NULL));
+ printf ("\"abcdef\" = \"%s\"\n", concatn ("", "a", "", "bcd", "ef", NULL));
+ return 0;
+}
+
+#endif /* TEST */
+
+
+/*
+Local variables:
+standalone-compile-command: "gcc -posix -g -I. -I.. -DTEST concatn.c kpathsea.a"
+End:
+*/