1 files changed, 43 insertions, 0 deletions
diff --git a/math/bits/mathcalls-helper-functions.h b/math/bits/mathcalls-helper-functions.h
new file mode 100644
index 0000000000..dec2d99f69
--- /dev/null
+++ b/math/bits/mathcalls-helper-functions.h
@@ -0,0 +1,43 @@
+/* Prototype declarations for math classification macros helpers.
+   Copyright (C) 2017 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/>.  */
+
+
+/* Classify given number.  */
+__MATHDECL_1 (int, __fpclassify,, (_Mdouble_ __value))
+     __attribute__ ((__const__));
+
+/* Test for negative number.  */
+__MATHDECL_1 (int, __signbit,, (_Mdouble_ __value))
+     __attribute__ ((__const__));
+
+/* Return 0 if VALUE is finite or NaN, +1 if it
+   is +Infinity, -1 if it is -Infinity.  */
+__MATHDECL_1 (int, __isinf,, (_Mdouble_ __value)) __attribute__ ((__const__));
+
+/* Return nonzero if VALUE is finite and not NaN.  Used by isfinite macro.  */
+__MATHDECL_1 (int, __finite,, (_Mdouble_ __value)) __attribute__ ((__const__));
+
+/* Return nonzero if VALUE is not a number.  */
+__MATHDECL_1 (int, __isnan,, (_Mdouble_ __value)) __attribute__ ((__const__));
+
+/* Test equality.  */
+__MATHDECL_1 (int, __iseqsig,, (_Mdouble_ __x, _Mdouble_ __y));
+
+/* Test for signaling NaN.  */
+__MATHDECL_1 (int, __issignaling,, (_Mdouble_ __value))
+     __attribute__ ((__const__));