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bug #1520: workaround some -Wfloat-equal warnings by calling std::equal_to

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Gael Guennebaud
2018-04-11 15:24:13 +02:00
parent 3f711f3356
commit 1c4fdad7bd
3 changed files with 23 additions and 3 deletions
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20
Eigen/src/Core/util/Meta.h
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@@ -485,6 +485,26 @@ T div_ceil(const T &a, const T &b)
return (a+b-1) / b;
}
// The aim of the following functions is to bypass -Wfloat-equal warnings
// when we really want a strict equality comparison on floating points.
template<typename X, typename Y>
bool equal_strict(const X& x,const Y& y) { return x == y; }
template<>
bool equal_strict(const float& x,const float& y) { return std::equal_to<float>()(x,y); }
template<>
bool equal_strict(const double& x,const double& y) { return std::equal_to<double>()(x,y); }
template<typename X, typename Y>
bool not_equal_strict(const X& x,const Y& y) { return x != y; }
template<>
bool not_equal_strict(const float& x,const float& y) { return std::not_equal_to<float>()(x,y); }
template<>
bool not_equal_strict(const double& x,const double& y) { return std::not_equal_to<double>()(x,y); }
} // end namespace numext
} // end namespace Eigen