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Use M_PI instead of acos(-1) for pi

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This commit is contained in:
Deanna Hood 2015-03-22 06:04:31 +10:00
parent 4bab4790c0
commit 83e5b7656b
2 changed files with 2 additions and 3 deletions
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3
Eigen/src/Core/MathFunctions.h
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@ -421,8 +421,7 @@ struct round_retval
EIGEN_DEVICE_FUNC
static inline RealScalar run(const Scalar& x)
{
const double pi = std::acos(-1.0);
return (x < 0.0) ? pi : 0.0; }
return (x < 0.0) ? M_PI : 0.0; }
};
template<typename Scalar>

2
test/array.cpp
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@ -237,7 +237,7 @@ template<typename ArrayType> void array_real(const ArrayType& m)
VERIFY_IS_APPROX(sinh(m1), 0.5*(exp(m1)-exp(-m1)));
VERIFY_IS_APPROX(cosh(m1), 0.5*(exp(m1)+exp(-m1)));
VERIFY_IS_APPROX(tanh(m1), (0.5*(exp(m1)-exp(-m1)))/(0.5*(exp(m1)+exp(-m1))));
VERIFY_IS_APPROX(arg(m1), ((ArrayType)(m1<0))*std::acos(-1.0));
VERIFY_IS_APPROX(arg(m1), ((ArrayType)(m1<0))*M_PI);
VERIFY((round(m1) <= ceil(m1) && round(m1) >= floor(m1)).all());
VERIFY(isNaN(m1*0.0/0.0).all());
VERIFY(isInf(m1/0.0).all());