summaryrefslogtreecommitdiff
path: root/libm/w_hypotf.c
diff options
context:
space:
mode:
Diffstat (limited to 'libm/w_hypotf.c')
-rw-r--r--libm/w_hypotf.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/libm/w_hypotf.c b/libm/w_hypotf.c
new file mode 100644
index 000000000..f6087174a
--- /dev/null
+++ b/libm/w_hypotf.c
@@ -0,0 +1,37 @@
+/* w_hypotf.c -- float version of w_hypot.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.
+ * ====================================================
+ */
+
+/*
+ * wrapper hypotf(x,y)
+ */
+
+#include <math.h>
+#include "math_private.h"
+
+float
+hypotf(float x, float y)
+{
+#if __UCLIBC_HAS_FENV__
+ float z = (float) __ieee754_hypot((double) x, (double) y);
+ if(__builtin_expect(!isfinite(z), 0)
+ && isfinite(x) && isfinite(y) && _LIB_VERSION != _IEEE_)
+ /* hypot overflow */
+ return __kernel_standard_f(x, y, 104);
+
+ return z;
+#else
+ return (float) __ieee754_hypot((double) x, (double) y);
+#endif
+} \ No newline at end of file