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Add header for _Float32 testing [committed]

This patch adds the header required for testing _Float32 function
aliases, using float ulps.  The corresponding makefile support will be
included in the main patch that enables those aliases.

In conjunction with other _Float32 changes, tested for x86_64 and with  Committed.

2017-12-06  Joseph Myers  <>

	* math/test-float32.h: New file.

diff --git a/math/test-float32.h b/math/test-float32.h
new file mode 100644
index 0000000..d2e1910
--- /dev/null
+++ b/math/test-float32.h
@@ -0,0 +1,37 @@
+/* Common definitions for libm tests for _Float32.
+   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
+   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
+   <>.  */
+#include "test-math-floatn.h"
+/* Fixup builtins and constants for older compilers.  */
+#include <bits/floatn.h>
+#include <float.h>
+#define FUNC(function) function ## f32
+#define FLOAT _Float32
+#define CFLOAT __CFLOAT32
+#define BUILD_COMPLEX(real, imag) (CMPLXF32 ((real), (imag)))
+#define PREFIX FLT32
+#define TYPE_STR "float"
+#define ULP_IDX ULP_FLT
+#define ULP_I_IDX ULP_I_FLT
+#define LIT(x) __f32 (x)
+#define LITM(x) x ## f32
+#define FTOSTR strfromf32
+#define snan_value_MACRO SNANF32

Joseph S. Myers

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