src/libpspp/copyleft.c: Add copyright and licence notice and an explanitory comment.

[pspp] / src / libpspp / array.h

diff --git a/src/libpspp/array.h b/src/libpspp/array.h
index dc17fbd7ef56fdd3f8b1a44c532fb9c964c28c90..5205be935bf2fa05ac08f5b262e07ae4a8749572 100644 (file)
--- a/src/libpspp/array.h
+++ b/src/libpspp/array.h
@@ -1,3 +1,21 @@
+/* 
+PSPP - a program for statistical analysis.
+Copyright (C) 2017 Free Software Foundation, Inc.
+
+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 3 of the License, or
+(at your option) any later version.
+
+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.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
 #ifndef ALGORITHM_H
 #define ALGORITHM_H 1
 
@@ -229,5 +247,8 @@ void sort_heap (void *array, size_t count, size_t size,
 bool is_heap (const void *array, size_t count, size_t size,
              algo_compare_func *compare, const void *aux);
 
+/* Reverses the order of ARRAY, which contains COUNT elements of SIZE bytes
+   each. */
+void reverse_array (void *array, size_t count, size_t size);
 
 #endif /* algorithm.h */