Blender V2.61 - r43446

btMinMax.h

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00001 /*
00002 Copyright (c) 2003-2006 Gino van den Bergen / Erwin Coumans  http://continuousphysics.com/Bullet/
00003 
00004 This software is provided 'as-is', without any express or implied warranty.
00005 In no event will the authors be held liable for any damages arising from the use of this software.
00006 Permission is granted to anyone to use this software for any purpose, 
00007 including commercial applications, and to alter it and redistribute it freely, 
00008 subject to the following restrictions:
00009 
00010 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
00011 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
00012 3. This notice may not be removed or altered from any source distribution.
00013 */
00014 
00015 
00016 
00017 #ifndef GEN_MINMAX_H
00018 #define GEN_MINMAX_H
00019 
00020 #include "LinearMath/btScalar.h"
00021 
00022 template <class T>
00023 SIMD_FORCE_INLINE const T& btMin(const T& a, const T& b) 
00024 {
00025   return a < b ? a : b ;
00026 }
00027 
00028 template <class T>
00029 SIMD_FORCE_INLINE const T& btMax(const T& a, const T& b) 
00030 {
00031   return  a > b ? a : b;
00032 }
00033 
00034 template <class T>
00035 SIMD_FORCE_INLINE const T& btClamped(const T& a, const T& lb, const T& ub) 
00036 {
00037     return a < lb ? lb : (ub < a ? ub : a); 
00038 }
00039 
00040 template <class T>
00041 SIMD_FORCE_INLINE void btSetMin(T& a, const T& b) 
00042 {
00043     if (b < a) 
00044     {
00045         a = b;
00046     }
00047 }
00048 
00049 template <class T>
00050 SIMD_FORCE_INLINE void btSetMax(T& a, const T& b) 
00051 {
00052     if (a < b) 
00053     {
00054         a = b;
00055     }
00056 }
00057 
00058 template <class T>
00059 SIMD_FORCE_INLINE void btClamp(T& a, const T& lb, const T& ub) 
00060 {
00061     if (a < lb) 
00062     {
00063         a = lb; 
00064     }
00065     else if (ub < a) 
00066     {
00067         a = ub;
00068     }
00069 }
00070 
00071 #endif