Add roundl(), lroundl(), and llroundl().

4 files changed, 78 insertions, 1 deletions

diff --git a/lib/msun/src/math.h b/lib/msun/src/math.h
index 27c4a1c..5ac6e56 100644
--- a/lib/msun/src/math.h
+++ b/lib/msun/src/math.h
@@ -428,14 +428,18 @@ long double	ldexpl(long double, int);
 #if 0
 long double	lgammal(long double);
 long long	llrintl(long double);
+#endif
 long long	llroundl(long double);
+#if 0
 long double	log10l(long double);
 long double	log1pl(long double);
 long double	log2l(long double);
 long double	logbl(long double);
 long double	logl(long double);
 long		lrintl(long double);
+#endif
 long		lroundl(long double);
+#if 0
 long double	modfl(long double, long double *); /* fundamentally !__pure2 */
 long double	nanl(const char *) __pure2;
 long double	nearbyintl(long double);
@@ -449,8 +453,8 @@ long double	powl(long double, long double);
 long double	remainderl(long double, long double);
 long double	remquol(long double, long double, int *);
 long double	rintl(long double);
-long double	roundl(long double);
 #endif
+long double	roundl(long double);
 long double	scalblnl(long double, long);
 long double	scalbnl(long double, int);
 #if 0
diff --git a/lib/msun/src/s_llroundl.c b/lib/msun/src/s_llroundl.c
new file mode 100644
index 0000000..02c44eb
--- /dev/null
+++ b/lib/msun/src/s_llroundl.c
@@ -0,0 +1,11 @@
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#define type		long double
+#define	roundit		roundl
+#define dtype		long long
+#define	DTYPE_MIN	LLONG_MIN
+#define	DTYPE_MAX	LLONG_MAX
+#define	fn		llroundl
+
+#include "s_lround.c"
diff --git a/lib/msun/src/s_lroundl.c b/lib/msun/src/s_lroundl.c
new file mode 100644
index 0000000..e410827
--- /dev/null
+++ b/lib/msun/src/s_lroundl.c
@@ -0,0 +1,11 @@
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#define type		long double
+#define	roundit		roundl
+#define dtype		long
+#define	DTYPE_MIN	LONG_MIN
+#define	DTYPE_MAX	LONG_MAX
+#define	fn		lroundl
+
+#include "s_lround.c"
diff --git a/lib/msun/src/s_roundl.c b/lib/msun/src/s_roundl.c
new file mode 100644
index 0000000..0cb688b
--- /dev/null
+++ b/lib/msun/src/s_roundl.c
@@ -0,0 +1,51 @@
+/*-
+ * Copyright (c) 2003, Steven G. Kargl
+ * 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 unmodified, 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <math.h>
+
+long double
+roundl(long double x)
+{
+	long double t;
+
+	if (!isfinite(x))
+		return (x);
+
+	if (x >= 0.0) {
+		t = ceill(x);
+		if (t - x > 0.5)
+			t -= 1.0;
+		return (t);
+	} else {
+		t = ceill(-x);
+		if (t + x > 0.5)
+			t -= 1.0;
+		return (-t);
+	}
+}