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0001 // Licensed to the Apache Software Foundation (ASF) under one
0002 // or more contributor license agreements.  See the NOTICE file
0003 // distributed with this work for additional information
0004 // regarding copyright ownership.  The ASF licenses this file
0005 // to you under the Apache License, Version 2.0 (the
0006 // "License"); you may not use this file except in compliance
0007 // with the License.  You may obtain a copy of the License at
0008 //
0009 //   http://www.apache.org/licenses/LICENSE-2.0
0010 //
0011 // Unless required by applicable law or agreed to in writing,
0012 // software distributed under the License is distributed on an
0013 // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
0014 // KIND, either express or implied.  See the License for the
0015 // specific language governing permissions and limitations
0016 // under the License.
0017 
0018 #pragma once
0019 
0020 #include <cmath>
0021 
0022 // Not provided by default in MSVC,
0023 // and _USE_MATH_DEFINES is not reliable with unity builds
0024 #ifndef M_PI
0025 #  define M_PI 3.14159265358979323846
0026 #endif
0027 #ifndef M_PI_2
0028 #  define M_PI_2 1.57079632679489661923
0029 #endif
0030 #ifndef M_PI_4
0031 #  define M_PI_4 0.785398163397448309616
0032 #endif