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authorcgd <cgd@NetBSD.org>1993-04-09 12:58:42 +0000
committercgd <cgd@NetBSD.org>1993-04-09 12:58:42 +0000
commitdab5e017db0343a12e6af02dc56cd82648c4b409 (patch)
tree352538f38241691b431e8c7466cecc624d6fe5bf /usr.bin/window/wwalloc.c
parenta6cd7e84d0342bf0b8882dde778556fe13b44fca (diff)
added, from net/2 (patch 124).
Diffstat (limited to 'usr.bin/window/wwalloc.c')
-rw-r--r--usr.bin/window/wwalloc.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/usr.bin/window/wwalloc.c b/usr.bin/window/wwalloc.c
new file mode 100644
index 00000000000..cf2519d43f3
--- /dev/null
+++ b/usr.bin/window/wwalloc.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Edward Wang at The University of California, Berkeley.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)wwalloc.c 3.11 (Berkeley) 6/6/90";
+#endif /* not lint */
+
+#include "ww.h"
+
+char **
+wwalloc(row, col, nrow, ncol, size)
+{
+ register char *p, **pp;
+ register int i;
+
+ /* fast, call malloc only once */
+ pp = (char **)
+ malloc((unsigned) sizeof (char **) * nrow + size * nrow * ncol);
+ if (pp == 0) {
+ wwerrno = WWE_NOMEM;
+ return 0;
+ }
+ p = (char *)&pp[nrow];
+ col *= size;
+ size /= sizeof (char); /* paranoid */
+ size *= ncol;
+ for (i = 0; i < nrow; i++) {
+ pp[i] = p - col;
+ p += size;
+ }
+ return pp - row;
+}
+
+wwfree(p, row)
+register char **p;
+{
+ free((char *)(p + row));
+}