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-rw-r--r--graphics/sketch/memutil.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/graphics/sketch/memutil.c b/graphics/sketch/memutil.c
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+++ b/graphics/sketch/memutil.c
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+/* memutil.c
+ Copyright (C) 2005,2006,2007 Eugene K. Ressler, Jr.
+
+This file is part of Sketch, a small, simple system for making
+3d drawings with LaTeX and the PSTricks or TikZ package.
+
+Sketch 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, or (at your option)
+any later version.
+
+Sketch 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 Sketch; see the file COPYING.txt. If not, see
+http://www.gnu.org/copyleft */
+
+#include <stdio.h>
+#include "memutil.h"
+
+void *
+safe_malloc (unsigned size)
+{
+#undef malloc
+ void *p = malloc (size);
+ if (size > 0 && p == NULL)
+ {
+ fprintf (stderr, "\nsafe_malloc: out of memory\n");
+ exit (1);
+ }
+ return p;
+}
+
+void *
+safe_realloc (void *p, unsigned size)
+{
+#undef realloc
+ void *q = realloc (p, size);
+ if (size > 0 && q == NULL)
+ {
+ fprintf (stderr, "\nsafe_realloc: out of memory\n");
+ exit (1);
+ }
+ return q;
+}
+
+char *
+safe_strdup (char *str)
+{
+#undef strdup
+ char *new_str = safe_malloc (strlen (str) + 1);
+ strcpy (new_str, str);
+ return new_str;
+}
+
+void
+safe_free (void *p)
+{
+#undef free
+ free (p);
+}
+