fix typos in mathl

[gnulib.git] / lib / argz.c

diff --git a/lib/argz.c b/lib/argz.c
index 253c6f5..9576a62 100644 (file)
--- a/lib/argz.c
+++ b/lib/argz.c
@@ -1,23 +1,32 @@
 /* argz.c -- argz implementation for non-glibc systems
-   Copyright (C) 2004, 2006, 2007 Free Software Foundation, Inc.
-   Originally by Gary V. Vaughan  <gary@gnu.org>
+
+   Copyright (C) 2004, 2006, 2007, 2008 Free Software Foundation, Inc.
+   Written by Gary V. Vaughan, 2004
 
    NOTE: The canonical source of this file is maintained with the
    GNU Libtool package.  Report bugs to bug-libtool@gnu.org.
 
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+GNU Libltdl 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 of the License, or (at your option) any later version.
+
+As a special exception to the GNU Lesser General Public License,
+if you distribute this file as part of a program or library that
+is built using GNU Libtool, you may include this file under the
+same distribution terms that you use for the rest of that program.
 
-   This program 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 General Public License for more details.
+GNU Libltdl 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 General Public License along
-   with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+You should have received a copy of the GNU Lesser General Public
+License along with GNU Libltdl; see the file COPYING.LIB.  If not, a
+copy can be downloaded from  http://www.gnu.org/licenses/lgpl.html,
+or obtained by writing to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*/
 
 #if defined(LTDL) && defined LT_CONFIG_H
 #  include LT_CONFIG_H
@@ -67,6 +76,14 @@ argz_append (char **pargz, size_t *pargz_len, const char *buf, size_t buf_len)
 }
 
 
+/* Add a string to the argz vector.  */
+error_t
+argz_add (char **pargz, size_t *pargz_len, const char *str)
+{
+  return argz_append (pargz, pargz_len, str, strlen (str) + 1);
+}
+
+
 error_t
 argz_create_sep (const char *str, int delim, char **pargz, size_t *pargz_len)
 {
@@ -214,3 +231,24 @@ argz_stringify (char *argz, size_t argz_len, int sep)
        }
     }
 }
+
+
+/* Count number of elements (null bytes) in argz vector.  */
+
+size_t
+argz_count (const char *argz, size_t argz_len)
+{
+  size_t count = 0;
+
+  assert ((argz && argz_len) || (!argz && !argz_len));
+  
+  while (argz_len > 0)
+    {
+      size_t part_len = strlen (argz);
+      argz += part_len + 1;
+      argz_len -= part_len + 1;
+      count++;
+    }
+  
+  return count;
+}