1 files changed, 51 insertions, 0 deletions
diff --git a/lib/libm/src/s_fminf.c b/lib/libm/src/s_fminf.c
new file mode 100644
index 00000000000..37de5c63e83
--- /dev/null
+++ b/lib/libm/src/s_fminf.c
@@ -0,0 +1,51 @@
+/*	$OpenBSD: s_fminf.c,v 1.1 2008/09/07 20:36:09 martynas Exp $	*/
+/*-
+ * Copyright (c) 2004 David Schultz <das@FreeBSD.ORG>
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ */
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+#include <math.h>
+
+float
+fminf(float x, float y)
+{
+	struct ieee_single *px = (struct ieee_single *)&x;
+	struct ieee_single *py = (struct ieee_single *)&y;
+
+	/* Check for NaNs to avoid raising spurious exceptions. */
+	if (px->sng_exp == SNG_EXP_INFNAN && px->sng_frac != 0)
+		return (y);
+	if (py->sng_exp == SNG_EXP_INFNAN && py->sng_frac != 0)
+		return (x);
+
+	/* Handle comparisons of signed zeroes. */
+	if (px->sng_sign != py->sng_sign && py->sng_sign == 1)
+		return (y);
+	if (px->sng_sign != py->sng_sign && py->sng_sign == 0)
+		return (x);
+
+	return (x < y ? x : y);
+}