summaryrefslogtreecommitdiff
path: root/math/w_acosh.c
diff options
context:
space:
mode:
authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /math/w_acosh.c
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
downloadglibc-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.tar.gz
2.5-18.1
Diffstat (limited to 'math/w_acosh.c')
-rw-r--r--math/w_acosh.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/math/w_acosh.c b/math/w_acosh.c
new file mode 100644
index 0000000000..e8322ec667
--- /dev/null
+++ b/math/w_acosh.c
@@ -0,0 +1,47 @@
+/* @(#)w_acosh.c 5.1 93/09/24 */
+/*
+ * ====================================================
+ * 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_acosh.c,v 1.6 1995/05/10 20:48:31 jtc Exp $";
+#endif
+
+/*
+ * wrapper acosh(x)
+ */
+
+#include <math.h>
+#include "math_private.h"
+
+#ifdef __STDC__
+ double __acosh(double x) /* wrapper acosh */
+#else
+ double __acosh(x) /* wrapper acosh */
+ double x;
+#endif
+{
+#ifdef _IEEE_LIBM
+ return __ieee754_acosh(x);
+#else
+ double z;
+ z = __ieee754_acosh(x);
+ if(_LIB_VERSION == _IEEE_ || __isnan(x)) return z;
+ if(x<1.0) {
+ return __kernel_standard(x,x,29); /* acosh(x<1) */
+ } else
+ return z;
+#endif
+}
+weak_alias (__acosh, acosh)
+#ifdef NO_LONG_DOUBLE
+strong_alias (__acosh, __acoshl)
+weak_alias (__acosh, acoshl)
+#endif