import newlib-2000-02-17 snapshot

1 files changed, 33 insertions, 0 deletions

diff --git a/newlib/libm/mathfp/sf_acos.c b/newlib/libm/mathfp/sf_acos.c
new file mode 100644
index 000000000..6bef98041
--- /dev/null
+++ b/newlib/libm/mathfp/sf_acos.c
@@ -0,0 +1,33 @@
+
+/* @(#)z_acosf.c 1.0 98/08/13 */
+/******************************************************************
+ * Arccosine
+ *
+ * Input:
+ *   x - floating point value
+ *
+ * Output:
+ *   arccosine of x
+ *
+ * Description:
+ *   This routine returns the arccosine of x.
+ *
+ *****************************************************************/
+
+#include "fdlibm.h"
+#include "zmath.h"
+
+float
+_DEFUN (acosf, (float),
+        float x)
+{
+  return (asinef (x, 1));
+}
+
+#ifdef _DOUBLE_IS_32BITS
+double acos (double x)
+{
+  return (double) asinef ((float) x, 1);
+}
+
+#endif /* defined(_DOUBLE_IS_32BITS) */