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discussed the issue with Casey Carter, the span ctor changes are accurate but the tests are not. The test require work that was done in C++17 regarding qualifier conversions to work correctly. Scoping tests for 17.

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Jordan Maples
2020-03-17 15:02:00 -07:00
parent 1dd1320c8b
commit 9b3ac8d681
2 changed files with 5 additions and 20 deletions
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include/gsl/span
+1 -18
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@@ -441,23 +441,6 @@ public:
: storage_(KnownNotNull{arr + 0}, details::extent_type<N>())
{}
// #define useold
#if defined(useold)
template <std::size_t N,
std::enable_if_t<details::is_allowed_extent_conversion<N, Extent>::value, int> = 0>
constexpr span(std::array<element_type, N>& arr) noexcept
: storage_(KnownNotNull{arr.data()}, details::extent_type<N>())
{}
template <std::size_t N,
std::enable_if_t<(details::is_allowed_extent_conversion<N, Extent>::value &&
details::is_allowed_element_type_conversion<const value_type,
element_type>::value),
int> = 0>
constexpr span(const std::array<value_type, N>& arr) noexcept
: storage_(KnownNotNull{arr.data()}, details::extent_type<N>())
{}
#else
template <class T, std::size_t N,
std::enable_if_t<(details::is_allowed_extent_conversion<N, Extent>::value &&
details::is_allowed_element_type_conversion<T, element_type>::value), int> = 0>
@@ -473,7 +456,7 @@ public:
constexpr span(const std::array<T, N>& arr) noexcept
: storage_(KnownNotNull{arr.data()}, details::extent_type<N>())
{}
#endif
// NB: the SFINAE here uses .data() as an incomplete/imperfect proxy for the requirement
// on Container to be a contiguous sequence container.
template <class Container,