[PATCH] Add `exp10l` function.

[Kamil Cukrowski <kamilcukrowski@gmail.com>]

There are many functions available in `libm` that have `l` suffix for 
`long double`,
but `exp10l` is missing while `exp10` and `exp10f` are provided.
This patch adds missing `exp10l` function.

Signed-off-by: Kamil Cukrowski <kamilcukrowski@gmail.com>
---
newlib/libm/common/exp10l.c | 42 +++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
create mode 100644 newlib/libm/common/exp10l.c

diff --git a/newlib/libm/common/exp10l.c b/newlib/libm/common/exp10l.c
new file mode 100644
index 000000000..5454fbbd3
--- /dev/null
+++ b/newlib/libm/common/exp10l.c
@@ -0,0 +1,42 @@
+/*
+(C) Copyright IBM Corp. 2009
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+* Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in the
+documentation and/or other materials provided with the distribution.
+* Neither the name of IBM nor the names of its contributors may be
+used to endorse or promote products derived from this software without
+specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <math.h>
+#include "local.h"
+
+/* On platforms where long double is as wide as double. */
+#ifdef _LDBL_EQ_DBL
+long double
+exp10l (long double x)
+{
+ return exp10(x);
+}
+#endif
+

-- 
2.27.0