2.5-18.1

1 files changed, 53 insertions, 0 deletions

diff --git a/math/w_tgammaf.c b/math/w_tgammaf.c
new file mode 100644
index 0000000000..d3698059e7
--- /dev/null
+++ b/math/w_tgammaf.c
@@ -0,0 +1,53 @@
+/* w_gammaf.c -- float version of w_gamma.c.
+ * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: w_gammaf.c,v 1.4 1995/11/20 22:06:48 jtc Exp $";
+#endif
+
+#include <math.h>
+#include "math_private.h"
+
+#ifdef __STDC__
+	float __tgammaf(float x)
+#else
+	float __tgammaf(x)
+	float x;
+#endif
+{
+        float y;
+	int local_signgam;
+	y = __ieee754_gammaf_r(x,&local_signgam);
+	if (local_signgam < 0) y = -y;
+#ifdef _IEEE_LIBM
+	return y;
+#else
+	if(_LIB_VERSION == _IEEE_) return y;
+
+	if(!__finitef(y)&&__finitef(x)) {
+	  if (x == (float)0.0)
+	    /* tgammaf pole */
+	    return (float)__kernel_standard((double)x,(double)x,150);
+	  else if(__floorf(x)==x&&x<(float)0.0)
+	    /* tgammaf domain */
+	    return (float)__kernel_standard((double)x,(double)x,141);
+	  else
+	    /* tgammaf overflow */
+	    return (float)__kernel_standard((double)x,(double)x,140);
+	}
+	return y;
+#endif
+}
+weak_alias (__tgammaf, tgammaf)