2.5-18.1

1 files changed, 53 insertions, 0 deletions

diff --git a/math/w_lgammaf.c b/math/w_lgammaf.c
new file mode 100644
index 0000000000..7c3c058d75
--- /dev/null
+++ b/math/w_lgammaf.c
@@ -0,0 +1,53 @@
+/* w_lgammaf.c -- float version of w_lgamma.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_lgammaf.c,v 1.3 1995/05/10 20:49:30 jtc Exp $";
+#endif
+
+#include <math.h>
+#include "math_private.h"
+
+#ifdef __STDC__
+	float __lgammaf(float x)
+#else
+	float __lgammaf(x)
+	float x;
+#endif
+{
+#ifdef _IEEE_LIBM
+	return __ieee754_lgammaf_r(x,&signgam);
+#else
+        float y;
+	int local_signgam = 0;
+        y = __ieee754_lgammaf_r(x,&local_signgam);
+	if (_LIB_VERSION != _ISOC_)
+	  /* ISO C99 does not define the global variable.  */
+	  signgam = local_signgam;
+        if(_LIB_VERSION == _IEEE_) return y;
+        if(!__finitef(y)&&__finitef(x)) {
+            if(__floorf(x)==x&&x<=(float)0.0)
+	        /* lgamma pole */
+                return (float)__kernel_standard((double)x,(double)x,115);
+            else
+	        /* lgamma overflow */
+                return (float)__kernel_standard((double)x,(double)x,114);
+        } else
+            return y;
+#endif
+}
+weak_alias (__lgammaf, lgammaf)
+strong_alias (__lgammaf, __gammaf)
+weak_alias (__gammaf, gammaf)