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Diffstat (limited to 'sysdeps/ieee754/ldbl-96/s_dsubl.c')
-rw-r--r--sysdeps/ieee754/ldbl-96/s_dsubl.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/sysdeps/ieee754/ldbl-96/s_dsubl.c b/sysdeps/ieee754/ldbl-96/s_dsubl.c
new file mode 100644
index 0000000000..5a855790f6
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-96/s_dsubl.c
@@ -0,0 +1,33 @@
+/* Subtract long double (ldbl-96) values, narrowing the result to double.
+ Copyright (C) 2018 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/>. */
+
+#define f32xsubf64x __hide_f32xsubf64x
+#define f64subf64x __hide_f64subf64x
+#include <math.h>
+#undef f32xsubf64x
+#undef f64subf64x
+
+#include <math-narrow.h>
+
+double
+__dsubl (long double x, long double y)
+{
+ NARROW_SUB_ROUND_TO_ODD (x, y, double, union ieee854_long_double, l,
+ mantissa1);
+}
+libm_alias_double_ldouble (sub)