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add global tan function

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This commit is contained in:
Gael Guennebaud 2011-02-03 14:45:21 +01:00
parent d028262e06
commit 2f71277105
3 changed files with 42 additions and 0 deletions
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2
Eigen/src/Core/GlobalFunctions.h
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@ -56,6 +56,7 @@ namespace std
EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(imag,scalar_imag_op)
EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(sin,scalar_sin_op)
EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(cos,scalar_cos_op)
EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(tan,scalar_tan_op)
EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(exp,scalar_exp_op)
EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(log,scalar_log_op)
EIGEN_ARRAY_DECLARE_GLOBAL_STD_UNARY(abs,scalar_abs_op)
@ -76,6 +77,7 @@ namespace Eigen
EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(imag,scalar_imag_op)
EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(sin,scalar_sin_op)
EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(cos,scalar_cos_op)
EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(tan,scalar_tan_op)
EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(exp,scalar_exp_op)
EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(log,scalar_log_op)
EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(abs,scalar_abs_op)

38
Eigen/src/Core/MathFunctions.h
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@ -567,6 +567,44 @@ inline EIGEN_MATHFUNC_RETVAL(sin, Scalar) sin(const Scalar& x)
return EIGEN_MATHFUNC_IMPL(sin, Scalar)::run(x);
}
/****************************************************************************
* Implementation of tan *
****************************************************************************/
template<typename Scalar, bool IsInteger>
struct tan_default_impl
{
static inline Scalar run(const Scalar& x)
{
return std::tan(x);
}
};
template<typename Scalar>
struct tan_default_impl<Scalar, true>
{
static inline Scalar run(const Scalar&)
{
EIGEN_STATIC_ASSERT_NON_INTEGER(Scalar)
return Scalar(0);
}
};
template<typename Scalar>
struct tan_impl : tan_default_impl<Scalar, NumTraits<Scalar>::IsInteger> {};
template<typename Scalar>
struct tan_retval
{
typedef Scalar type;
};
template<typename Scalar>
inline EIGEN_MATHFUNC_RETVAL(tan, Scalar) tan(const Scalar& x)
{
return EIGEN_MATHFUNC_IMPL(tan, Scalar)::run(x);
}
/****************************************************************************
* Implementation of log *
****************************************************************************/

2
test/array.cpp
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@ -173,6 +173,8 @@ template<typename ArrayType> void array_real(const ArrayType& m)
VERIFY_IS_APPROX(m1.sin(), internal::sin(m1));
VERIFY_IS_APPROX(m1.cos(), std::cos(m1));
VERIFY_IS_APPROX(m1.cos(), internal::cos(m1));
VERIFY_IS_APPROX(m1.tan(), std::tan(m1));
VERIFY_IS_APPROX(m1.tan(), internal::tan(m1));
VERIFY_IS_APPROX(internal::cos(m1+RealScalar(3)*m2), internal::cos((m1+RealScalar(3)*m2).eval()));
VERIFY_IS_APPROX(std::cos(m1+RealScalar(3)*m2), std::cos((m1+RealScalar(3)*m2).eval()));