summaryrefslogtreecommitdiffstats
path: root/lib/msun/src/w_acoshf.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/msun/src/w_acoshf.c')
-rw-r--r--lib/msun/src/w_acoshf.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/lib/msun/src/w_acoshf.c b/lib/msun/src/w_acoshf.c
new file mode 100644
index 0000000..5ba01e4
--- /dev/null
+++ b/lib/msun/src/w_acoshf.c
@@ -0,0 +1,47 @@
+/* w_acoshf.c -- float version of w_acosh.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.
+ * ====================================================
+ *
+ */
+
+#ifndef lint
+static char rcsid[] = "$Id: w_acoshf.c,v 1.1 1994/08/10 20:33:28 jtc Exp $";
+#endif
+
+/*
+ * wrapper acoshf(x)
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+ float acoshf(float x) /* wrapper acoshf */
+#else
+ float acoshf(x) /* wrapper acoshf */
+ float x;
+#endif
+{
+#ifdef _IEEE_LIBM
+ return __ieee754_acoshf(x);
+#else
+ float z;
+ z = __ieee754_acoshf(x);
+ if(_LIB_VERSION == _IEEE_ || isnanf(x)) return z;
+ if(x<(float)1.0) {
+ /* acosh(x<1) */
+ return (float)__kernel_standard((double)x,(double)x,129);
+ } else
+ return z;
+#endif
+}
OpenPOWER on IntegriCloud