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Make 3.4.1 compatible with c++03

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This commit is contained in:
Antonio Sanchez 2023-10-16 15:38:25 -07:00
parent 0db5928f00
commit 7176ae1623
1 changed files with 2 additions and 3 deletions
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5
Eigen/src/Core/util/Meta.h
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@ -470,9 +470,8 @@ template<typename T, std::size_t N> struct array_size<std::array<T,N> > {
*/
#if EIGEN_COMP_CXXVER < 20
template <typename T>
EIGEN_CONSTEXPR auto index_list_size(const T& x) {
using R = std::common_type_t<std::ptrdiff_t, std::make_signed_t<decltype(x.size())>>;
return static_cast<R>(x.size());
EIGEN_CONSTEXPR std::ptrdiff_t index_list_size(const T& x) {
return static_cast<std::ptrdiff_t>(x.size());
}
template<typename T, std::ptrdiff_t N>