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bug #1752: make is_convertible equivalent to the std c++11 equivalent and fallback to std::is_convertible when c++11 is enabled.

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This commit is contained in:
Gael Guennebaud
2019-10-10 17:41:47 +02:00
parent fb557aec5c
commit e7d8ba747c
2 changed files with 19 additions and 2 deletions
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8
test/meta.cpp
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@@ -87,8 +87,12 @@ EIGEN_DECLARE_TEST(meta)
STATIC_CHECK(( internal::is_convertible<const Matrix3f&,const Matrix3f&>::value ));
STATIC_CHECK((!internal::is_convertible<const Matrix3f&,Matrix3f&>::value ));
STATIC_CHECK((!internal::is_convertible<const Matrix3f,Matrix3f&>::value ));
STATIC_CHECK(( internal::is_convertible<Matrix3f,Matrix3f&>::value )); // std::is_convertible returns false here though Matrix3f from; Matrix3f& to = from; is valid.
//STATIC_CHECK((!internal::is_convertible<Matrix3f,Matrix3d>::value )); //does not work because the conversion is prevented by a static assertion
STATIC_CHECK(!( internal::is_convertible<Matrix3f,Matrix3f&>::value ));
STATIC_CHECK(!( internal::is_convertible<int,int&>::value ));
STATIC_CHECK(( internal::is_convertible<const int,const int& >::value ));
//STATIC_CHECK((!internal::is_convertible<Matrix3f,Matrix3d>::value )); //does not even compile because the conversion is prevented by a static assertion
STATIC_CHECK((!internal::is_convertible<Array33f,int>::value ));
STATIC_CHECK((!internal::is_convertible<MatrixXf,float>::value ));
{