45 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			C++
		
	
	
	
		
		
			
		
	
	
			45 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			C++
		
	
	
	
|  | // Copyright (c) 2016-2018 Easy2D - Nomango
 | ||
|  | // 
 | ||
|  | // Permission is hereby granted, free of charge, to any person obtaining a copy
 | ||
|  | // of this software and associated documentation files (the "Software"), to deal
 | ||
|  | // in the Software without restriction, including without limitation the rights
 | ||
|  | // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 | ||
|  | // copies of the Software, and to permit persons to whom the Software is
 | ||
|  | // furnished to do so, subject to the following conditions:
 | ||
|  | // 
 | ||
|  | // The above copyright notice and this permission notice shall be included in
 | ||
|  | // all copies or substantial portions of the Software.
 | ||
|  | // 
 | ||
|  | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 | ||
|  | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 | ||
|  | // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 | ||
|  | // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 | ||
|  | // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 | ||
|  | // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 | ||
|  | // THE SOFTWARE.
 | ||
|  | 
 | ||
|  | #pragma once
 | ||
|  | 
 | ||
|  | #if _MSC_VER >= 1900
 | ||
|  | #	define E2D_CONSTEXPR constexpr
 | ||
|  | #else
 | ||
|  | #	define E2D_CONSTEXPR const
 | ||
|  | #endif
 | ||
|  | 
 | ||
|  | namespace easy2d | ||
|  | { | ||
|  | 	namespace math | ||
|  | 	{ | ||
|  | 		namespace constants | ||
|  | 		{ | ||
|  | 			E2D_CONSTEXPR auto PI_F     = 3.141592653589793f; | ||
|  | 			E2D_CONSTEXPR auto PI_F_2   = 1.570796326794896f; | ||
|  | 			E2D_CONSTEXPR auto PI_F_X_2 = 6.283185307179586f; | ||
|  | 
 | ||
|  | 			E2D_CONSTEXPR auto PI_D     = 3.14159265358979323846; | ||
|  | 			E2D_CONSTEXPR auto PI_D_2   = 1.57079632679489661923; | ||
|  | 			E2D_CONSTEXPR auto PI_D_X_2 = 6.28318530717958647692; | ||
|  | 		} | ||
|  | 	} | ||
|  | } |