assimp/MathFunctions.h

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/*
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Open Asset Import Library (assimp)
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#pragma once
 
#ifdef __GNUC__
#   pragma GCC system_header
#endif
 
#include <limits>
 
namespace Assimp {
namespace Math {
 
template <typename IntegerType>
inline IntegerType gcd( IntegerType a, IntegerType b ) {
    const IntegerType zero = (IntegerType)0;
    while ( true ) {
        if ( a == zero ) {
            return b;
        }
        b %= a;
 
        if ( b == zero ) {
            return a;
        }
        a %= b;
    }
}
 
template < typename IntegerType >
inline IntegerType lcm( IntegerType a, IntegerType b ) {
    const IntegerType t = gcd (a,b);
    if (!t) {
        return t;
    }
    return a / t * b;
}
template<class T>
inline T getEpsilon() {
    return std::numeric_limits<T>::epsilon();
}
 
template<class T>
inline T PI() {
    return static_cast<T>(3.14159265358979323846);
}
 
} // namespace Math
} // namespace Assimp