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diff --git a/libdimension/dimension/array.h b/libdimension/dimension/array.h
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+/*************************************************************************
+ * Copyright (C) 2008 Tavian Barnes <tavianator@gmail.com>               *
+ *                                                                       *
+ * This file is part of The Dimension Library.                           *
+ *                                                                       *
+ * The Dimension 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 3 of the *
+ * License, or (at your option) any later version.                       *
+ *                                                                       *
+ * The Dimension 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 program.  If not, see                         *
+ * <http://www.gnu.org/licenses/>.                                       *
+ *************************************************************************/
+
+#ifndef DIMENSION_ARRAY_H
+#define DIMENSION_ARRAY_H
+
+/*
+ * Simple generalized arrays, for returning variable-length arrays from
+ * functions, and other fun stuff.
+ */
+
+#include <stdlib.h> /* For size_t */
+
+typedef struct {
+  void *ptr;
+  size_t obj_size, length, capacity;
+} dmnsn_array;
+
+dmnsn_array *dmnsn_new_array(size_t obj_size);
+
+void dmnsn_array_push(dmnsn_array *array, const void *obj);
+void dmnsn_array_pop(dmnsn_array *array, void *obj);
+
+void dmnsn_array_get(const dmnsn_array *array, size_t i, void *obj);
+void dmnsn_array_set(dmnsn_array *array, size_t i, const void *obj);
+
+void dmnsn_array_resize(dmnsn_array *array, size_t length);
+
+void dmnsn_delete_array(dmnsn_array *array);
+
+#endif /* DIMENSION_ARRAY_H */