aboutsummaryrefslogtreecommitdiff
path: root/math/w_sqrtf.c
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>2005-12-14 15:06:39 +0000
committerUlrich Drepper <drepper@redhat.com>2005-12-14 15:06:39 +0000
commit9d13fb2413921c713f83efe331e8e4d219c62c6b (patch)
tree2d44d7ac45ab2d147eb8361bbff880c365aa8ad5 /math/w_sqrtf.c
parentb6ab06cef4670e02756bcdd4d2c33a49369a4346 (diff)
downloadglibc-9d13fb2413921c713f83efe331e8e4d219c62c6b.zip
glibc-9d13fb2413921c713f83efe331e8e4d219c62c6b.tar.gz
glibc-9d13fb2413921c713f83efe331e8e4d219c62c6b.tar.bz2
Moved to csu/errno-loc.c.
Diffstat (limited to 'math/w_sqrtf.c')
-rw-r--r--math/w_sqrtf.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/math/w_sqrtf.c b/math/w_sqrtf.c
new file mode 100644
index 0000000..21beb55
--- /dev/null
+++ b/math/w_sqrtf.c
@@ -0,0 +1,47 @@
+/* w_sqrtf.c -- float version of w_sqrt.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_sqrtf.c,v 1.3 1995/05/10 20:49:59 jtc Exp $";
+#endif
+
+/*
+ * wrapper sqrtf(x)
+ */
+
+#include <math.h>
+#include "math_private.h"
+
+#ifdef __STDC__
+ float __sqrtf(float x) /* wrapper sqrtf */
+#else
+ float sqrt(x) /* wrapper sqrtf */
+ float x;
+#endif
+{
+#ifdef _IEEE_LIBM
+ return __ieee754_sqrtf(x);
+#else
+ float z;
+ z = __ieee754_sqrtf(x);
+ if(_LIB_VERSION == _IEEE_ || __isnanf(x)) return z;
+ if(x<(float)0.0) {
+ /* sqrtf(negative) */
+ return (float)__kernel_standard((double)x,(double)x,126);
+ } else
+ return z;
+#endif
+}
+weak_alias (__sqrtf, sqrtf)