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diff --git a/extern/bullet2/BulletMultiThreaded/vectormath/scalar/cpp/floatInVec.h b/extern/bullet2/BulletMultiThreaded/vectormath/scalar/cpp/floatInVec.h
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+/*
+   Copyright (C) 2009 Sony Computer Entertainment Inc.
+   All rights reserved.
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose, 
+including commercial applications, and to alter it and redistribute it freely, 
+subject to the following restrictions:
+
+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.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+
+*/
+#ifndef _FLOATINVEC_H
+#define _FLOATINVEC_H
+
+#include <math.h>
+namespace Vectormath {
+
+class boolInVec;
+
+//--------------------------------------------------------------------------------------------------
+// floatInVec class
+//
+
+// A class representing a scalar float value contained in a vector register
+// This class does not support fastmath
+class floatInVec
+{
+private:
+    float mData;
+
+public:
+    // Default constructor; does no initialization
+    //
+    inline floatInVec( ) { };
+
+    // Construct from a value converted from bool
+    //
+    inline floatInVec(boolInVec vec);
+
+    // Explicit cast from float
+    //
+    explicit inline floatInVec(float scalar);
+
+    // Explicit cast to float
+    //
+    inline float getAsFloat() const;
+
+#ifndef _VECTORMATH_NO_SCALAR_CAST
+    // Implicit cast to float
+    //
+    inline operator float() const;
+#endif
+
+    // Post increment (add 1.0f)
+    //
+    inline const floatInVec operator ++ (int);
+
+    // Post decrement (subtract 1.0f)
+    //
+    inline const floatInVec operator -- (int);
+
+    // Pre increment (add 1.0f)
+    //
+    inline floatInVec& operator ++ ();
+
+    // Pre decrement (subtract 1.0f)
+    //
+    inline floatInVec& operator -- ();
+
+    // Negation operator
+    //
+    inline const floatInVec operator - () const;
+
+    // Assignment operator
+    //
+    inline floatInVec& operator = (floatInVec vec);
+
+    // Multiplication assignment operator
+    //
+    inline floatInVec& operator *= (floatInVec vec);
+
+    // Division assignment operator
+    //
+    inline floatInVec& operator /= (floatInVec vec);
+
+    // Addition assignment operator
+    //
+    inline floatInVec& operator += (floatInVec vec);
+
+    // Subtraction assignment operator
+    //
+    inline floatInVec& operator -= (floatInVec vec);
+
+};
+
+// Multiplication operator
+//
+inline const floatInVec operator * (floatInVec vec0, floatInVec vec1);
+
+// Division operator
+//
+inline const floatInVec operator / (floatInVec vec0, floatInVec vec1);
+
+// Addition operator
+//
+inline const floatInVec operator + (floatInVec vec0, floatInVec vec1);
+
+// Subtraction operator
+//
+inline const floatInVec operator - (floatInVec vec0, floatInVec vec1);
+
+// Less than operator
+//
+inline const boolInVec operator < (floatInVec vec0, floatInVec vec1);
+
+// Less than or equal operator
+//
+inline const boolInVec operator <= (floatInVec vec0, floatInVec vec1);
+
+// Greater than operator
+//
+inline const boolInVec operator > (floatInVec vec0, floatInVec vec1);
+
+// Greater than or equal operator
+//
+inline const boolInVec operator >= (floatInVec vec0, floatInVec vec1);
+
+// Equal operator
+//
+inline const boolInVec operator == (floatInVec vec0, floatInVec vec1);
+
+// Not equal operator
+//
+inline const boolInVec operator != (floatInVec vec0, floatInVec vec1);
+
+// Conditionally select between two values
+//
+inline const floatInVec select(floatInVec vec0, floatInVec vec1, boolInVec select_vec1);
+
+
+} // namespace Vectormath
+
+
+//--------------------------------------------------------------------------------------------------
+// floatInVec implementation
+//
+
+#include "boolInVec.h"
+
+namespace Vectormath {
+
+inline
+floatInVec::floatInVec(boolInVec vec)
+{
+    mData = float(vec.getAsBool());
+}
+
+inline
+floatInVec::floatInVec(float scalar)
+{
+    mData = scalar;
+}
+
+inline
+float
+floatInVec::getAsFloat() const
+{
+    return mData;
+}
+
+#ifndef _VECTORMATH_NO_SCALAR_CAST
+inline
+floatInVec::operator float() const
+{
+    return getAsFloat();
+}
+#endif
+
+inline
+const floatInVec
+floatInVec::operator ++ (int)
+{
+    float olddata = mData;
+    operator ++();
+    return floatInVec(olddata);
+}
+
+inline
+const floatInVec
+floatInVec::operator -- (int)
+{
+    float olddata = mData;
+    operator --();
+    return floatInVec(olddata);
+}
+
+inline
+floatInVec&
+floatInVec::operator ++ ()
+{
+    *this += floatInVec(1.0f);
+    return *this;
+}
+
+inline
+floatInVec&
+floatInVec::operator -- ()
+{
+    *this -= floatInVec(1.0f);
+    return *this;
+}
+
+inline
+const floatInVec
+floatInVec::operator - () const
+{
+    return floatInVec(-mData);
+}
+
+inline
+floatInVec&
+floatInVec::operator = (floatInVec vec)
+{
+    mData = vec.mData;
+    return *this;
+}
+
+inline
+floatInVec&
+floatInVec::operator *= (floatInVec vec)
+{
+    *this = *this * vec;
+    return *this;
+}
+
+inline
+floatInVec&
+floatInVec::operator /= (floatInVec vec)
+{
+    *this = *this / vec;
+    return *this;
+}
+
+inline
+floatInVec&
+floatInVec::operator += (floatInVec vec)
+{
+    *this = *this + vec;
+    return *this;
+}
+
+inline
+floatInVec&
+floatInVec::operator -= (floatInVec vec)
+{
+    *this = *this - vec;
+    return *this;
+}
+
+inline
+const floatInVec
+operator * (floatInVec vec0, floatInVec vec1)
+{
+    return floatInVec(vec0.getAsFloat() * vec1.getAsFloat());
+}
+
+inline
+const floatInVec
+operator / (floatInVec num, floatInVec den)
+{
+    return floatInVec(num.getAsFloat() / den.getAsFloat());
+}
+
+inline
+const floatInVec
+operator + (floatInVec vec0, floatInVec vec1)
+{
+    return floatInVec(vec0.getAsFloat() + vec1.getAsFloat());
+}
+
+inline
+const floatInVec
+operator - (floatInVec vec0, floatInVec vec1)
+{
+    return floatInVec(vec0.getAsFloat() - vec1.getAsFloat());
+}
+
+inline
+const boolInVec
+operator < (floatInVec vec0, floatInVec vec1)
+{
+    return boolInVec(vec0.getAsFloat() < vec1.getAsFloat());
+}
+
+inline
+const boolInVec
+operator <= (floatInVec vec0, floatInVec vec1)
+{
+    return !(vec0 > vec1);
+}
+
+inline
+const boolInVec
+operator > (floatInVec vec0, floatInVec vec1)
+{
+    return boolInVec(vec0.getAsFloat() > vec1.getAsFloat());
+}
+
+inline
+const boolInVec
+operator >= (floatInVec vec0, floatInVec vec1)
+{
+    return !(vec0 < vec1);
+}
+
+inline
+const boolInVec
+operator == (floatInVec vec0, floatInVec vec1)
+{
+    return boolInVec(vec0.getAsFloat() == vec1.getAsFloat());
+}
+
+inline
+const boolInVec
+operator != (floatInVec vec0, floatInVec vec1)
+{
+    return !(vec0 == vec1);
+}
+
+inline
+const floatInVec
+select(floatInVec vec0, floatInVec vec1, boolInVec select_vec1)
+{
+    return (select_vec1.getAsBool() == 0) ? vec0 : vec1;
+}
+
+} // namespace Vectormath
+
+#endif // floatInVec_h