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address issue with v140 toolset

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This commit is contained in:
Jordan Maples [MSFT] 2020-02-10 17:09:58 -08:00
parent dd78144c2e
commit cce6ee563e
1 changed files with 12 additions and 0 deletions
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12
include/gsl/span
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@ -71,7 +71,11 @@ namespace gsl
{ {
// [views.constants], constants // [views.constants], constants
#if (defined(GSL_USE_STATIC_CONSTEXPR_WORKAROUND))
constexpr const std::size_t dynamic_extent = static_cast<std::size_t>(-1);
#else
constexpr std::size_t dynamic_extent = static_cast<std::size_t>(-1); constexpr std::size_t dynamic_extent = static_cast<std::size_t>(-1);
#endif
template <class ElementType, std::size_t Extent = dynamic_extent> template <class ElementType, std::size_t Extent = dynamic_extent>
class span; class span;
@ -134,6 +138,12 @@ namespace details
#ifdef _MSC_VER #ifdef _MSC_VER
using _Unchecked_type = pointer; using _Unchecked_type = pointer;
#endif #endif
constexpr span_iterator() = default;
constexpr span_iterator(pointer begin, pointer end, pointer current)
: begin_(begin), end_(end), current_(current)
{}
constexpr operator span_iterator<const Type>() const noexcept constexpr operator span_iterator<const Type>() const noexcept
{ {
return {begin_, end_, current_}; return {begin_, end_, current_};
@ -494,6 +504,7 @@ public:
template <std::size_t Count> template <std::size_t Count>
constexpr span<element_type, Count> first() const noexcept constexpr span<element_type, Count> first() const noexcept
{ {
Expects(Count != dynamic_extent);
Expects(Count <= size()); Expects(Count <= size());
return {data(), Count}; return {data(), Count};
} }
@ -504,6 +515,7 @@ public:
// clang-format on // clang-format on
constexpr span<element_type, Count> last() const noexcept constexpr span<element_type, Count> last() const noexcept
{ {
Expects(Count != dynamic_extent);
Expects(size() >= Count); Expects(size() >= Count);
return {data() + (size() - Count), Count}; return {data() + (size() - Count), Count};
} }