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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// Code on Windows expects to be able to do:
//
// #define _USE_MATH_DEFINES
// #include <math.h>
//
// and receive the definitions of mathematical constants, even if <math.h>
// has previously been included. Make sure that works.
//
#ifdef _MSC_VER
# include <math.h>
# define _USE_MATH_DEFINES
# include <math.h>
# ifndef M_PI
# error M_PI not defined
# endif
#endif
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