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authorljo <ljo@FreeBSD.org>1994-01-05 02:53:40 +0000
committerljo <ljo@FreeBSD.org>1994-01-05 02:53:40 +0000
commitb0bfbf3dbded7a8d47a844bd1ae18498e620a6f2 (patch)
treeb30007e77419520e5afba465be75d7cc308df521 /usr.bin/f2c/memset.c
downloadFreeBSD-src-b0bfbf3dbded7a8d47a844bd1ae18498e620a6f2.zip
FreeBSD-src-b0bfbf3dbded7a8d47a844bd1ae18498e620a6f2.tar.gz
f2c from netlib.att.com Jan 4 1994
Diffstat (limited to 'usr.bin/f2c/memset.c')
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1 files changed, 66 insertions, 0 deletions
diff --git a/usr.bin/f2c/memset.c b/usr.bin/f2c/memset.c
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+/****************************************************************
+Copyright 1990 by AT&T Bell Laboratories and Bellcore.
+
+Permission to use, copy, modify, and distribute this software
+and its documentation for any purpose and without fee is hereby
+granted, provided that the above copyright notice appear in all
+copies and that both that the copyright notice and this
+permission notice and warranty disclaimer appear in supporting
+documentation, and that the names of AT&T Bell Laboratories or
+Bellcore or any of their entities not be used in advertising or
+publicity pertaining to distribution of the software without
+specific, written prior permission.
+
+AT&T and Bellcore disclaim all warranties with regard to this
+software, including all implied warranties of merchantability
+and fitness. In no event shall AT&T or Bellcore be liable for
+any special, indirect or consequential damages or any damages
+whatsoever resulting from loss of use, data or profits, whether
+in an action of contract, negligence or other tortious action,
+arising out of or in connection with the use or performance of
+this software.
+****************************************************************/
+
+/* This is for the benefit of people whose systems don't provide
+ * memset, memcpy, and memcmp. If yours is such a system, adjust
+ * the makefile by adding memset.o to the "OBJECTS =" assignment.
+ * WARNING: the memcpy below is adequate for f2c, but is not a
+ * general memcpy routine (which must correctly handle overlapping
+ * fields).
+ */
+
+ int
+memcmp(s1, s2, n)
+ register char *s1, *s2;
+ int n;
+{
+ register char *se;
+
+ for(se = s1 + n; s1 < se; s1++, s2++)
+ if (*s1 != *s2)
+ return *s1 - *s2;
+ return 0;
+ }
+
+ char *
+memcpy(s1, s2, n)
+ register char *s1, *s2;
+ int n;
+{
+ register char *s0 = s1, *se = s1 + n;
+
+ while(s1 < se)
+ *s1++ = *s2++;
+ return s0;
+ }
+
+memset(s, c, n)
+ register char *s;
+ register int c;
+ int n;
+{
+ register char *se = s + n;
+
+ while(s < se)
+ *s++ = c;
+ }
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