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Diffstat (limited to 'libc/sysdeps/linux/sparc64/soft-fp/s_scalblnl.c')
-rw-r--r--libc/sysdeps/linux/sparc64/soft-fp/s_scalblnl.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/sparc64/soft-fp/s_scalblnl.c b/libc/sysdeps/linux/sparc64/soft-fp/s_scalblnl.c
new file mode 100644
index 000000000..250a8f4f0
--- /dev/null
+++ b/libc/sysdeps/linux/sparc64/soft-fp/s_scalblnl.c
@@ -0,0 +1,52 @@
+/* Software floating-point emulation.
+ scalblnl(x, exp)
+ Copyright (C) 1999-2017 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek (jj@ultra.linux.cz).
+
+ 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/>. */
+
+/*
+ * scalblnl (long double x, long int n)
+ * scalblnl(x,n) returns x* 2**n computed by exponent
+ * manipulation rather than by actually performing an
+ * exponentiation or a multiplication.
+ */
+
+#include "soft-fp.h"
+#include "quad.h"
+
+long double __scalblnl(long double arg, int exp)
+{
+ FP_DECL_EX;
+ FP_DECL_Q(A);
+ long double r;
+
+ FP_UNPACK_Q(A, arg);
+ switch (A_c)
+ {
+ case FP_CLS_ZERO:
+ return arg;
+ case FP_CLS_NAN:
+ case FP_CLS_INF:
+ FP_HANDLE_EXCEPTIONS;
+ return arg;
+ }
+ A_e += exp;
+ FP_PACK_Q(r, A);
+ FP_HANDLE_EXCEPTIONS;
+
+ return r;
+}