about summary refs log tree commit diff
path: root/sysdeps/m68k/m680x0/fpu/s_expm1.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/m68k/m680x0/fpu/s_expm1.c')
-rw-r--r--sysdeps/m68k/m680x0/fpu/s_expm1.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/sysdeps/m68k/m680x0/fpu/s_expm1.c b/sysdeps/m68k/m680x0/fpu/s_expm1.c
new file mode 100644
index 0000000000..341cd160b7
--- /dev/null
+++ b/sysdeps/m68k/m680x0/fpu/s_expm1.c
@@ -0,0 +1,41 @@
+/* Copyright (C) 2012-2014 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <math.h>
+#include <errno.h>
+#include "mathimpl.h"
+
+#ifndef FUNC
+# define FUNC expm1
+#endif
+#ifndef float_type
+# define float_type double
+#endif
+#ifndef o_threshold
+# define o_threshold 7.09782712893383973096e+02
+#endif
+
+#define CONCATX(a,b) __CONCAT(a,b)
+
+float_type
+CONCATX(__,FUNC) (float_type x)
+{
+  if ((__m81_test (x) & __M81_COND_INF) == 0 && isgreater (x, o_threshold))
+    __set_errno (ERANGE);
+  return __m81_u(CONCATX(__, FUNC)) (x);
+}
+weak_alias (CONCATX(__, FUNC), FUNC)