llabs(3) for C99

2 files changed, 59 insertions, 6 deletions

diff --git a/src/lib/libc/stdlib/labs.3 b/src/lib/libc/stdlib/labs.3
index d00c307276..742f3eedba 100644
--- a/src/lib/libc/stdlib/labs.3
+++ b/src/lib/libc/stdlib/labs.3
@@ -29,22 +29,28 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"     $OpenBSD: labs.3,v 1.6 2003/06/02 20:18:37 millert Exp $
+.\"     $OpenBSD: labs.3,v 1.7 2003/07/21 20:20:04 millert Exp $
 .\"
-.Dd June 29, 1991
+.Dd May 14, 2003
 .Dt LABS 3
 .Os
 .Sh NAME
-.Nm labs
+.Nm labs, llabs
 .Nd return the absolute value of a long integer
 .Sh SYNOPSIS
 .Fd #include <stdlib.h>
 .Ft long
-.Fn labs "long j"
+.Fn labs "long i"
+.Ft long long
+.Fn llabs "long long j"
 .Sh DESCRIPTION
 The
 .Fn labs
 function returns the absolute value of the long integer
+.Fa i .
+The
+.Fn llabs
+function returns the absolute value of the long long integer
 .Fa j .
 .Sh SEE ALSO
 .Xr abs 3 ,
@@ -54,7 +60,9 @@ function returns the absolute value of the long integer
 .Sh STANDARDS
 The
 .Fn labs
-function conforms to
-.St -ansiC .
+and
+.Fn llabs
+functions conform to
+.St -ansiC-99 .
 .Sh BUGS
 The absolute value of the most negative integer remains negative.
diff --git a/src/lib/libc/stdlib/llabs.c b/src/lib/libc/stdlib/llabs.c
new file mode 100644
index 0000000000..9611b5aefd
--- /dev/null
+++ b/src/lib/libc/stdlib/llabs.c
@@ -0,0 +1,45 @@
+/*      $OpenBSD: llabs.c,v 1.1 2003/07/21 20:20:04 millert Exp $       */
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * 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.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char *rcsid = "$OpenBSD: llabs.c,v 1.1 2003/07/21 20:20:04 millert Exp $";
+#endif /* LIBC_SCCS and not lint */
+
+#include <stdlib.h>
+
+long long llabs(long long j)
+{
+        return (j < 0 ? -j : j);
+}