ClanLib  2.3.7
cl_math.h
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1 /*
2 ** ClanLib SDK
3 ** Copyright (c) 1997-2011 The ClanLib Team
4 **
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11 ** freely, subject to the following restrictions:
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15 ** in a product, an acknowledgment in the product documentation would be
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18 ** misrepresented as being the original software.
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23 **
24 ** File Author(s):
25 **
26 ** Magnus Norddahl
27 */
28 
31 
32 #pragma once
33 
34 #include "../api_core.h"
35 #include "../System/cl_platform.h"
36 #include <cmath>
37 
38 #ifndef CL_PI
39 #define CL_PI CL_M_PI_F
40 #endif
41 
42 template<typename T> inline T cl_pow2(T value) { return value*value; }
43 template<typename A, typename B> inline A cl_min(A a, B b) { return a < b ? a : b; }
44 template<typename A, typename B> inline A cl_max(A a, B b) { return a > b ? a : b; }
45 template<typename A, typename B, typename C> inline C cl_clamp(A val, B minval, C maxval) { return cl_max(minval, cl_min(maxval, val)); }
46 template<typename A, typename B, typename C> inline A cl_mix(A a, B b, C mix) { return a * (C(1) - mix) + b * mix; }
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