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https://github.com/microsoft/GSL.git
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addressing feedback
This commit is contained in:
Jordan Maples [MSFT]
parent
81c2a1da15
commit
e0dc8095b3
112
include/gsl/span
112
include/gsl/span
@ -71,7 +71,7 @@ namespace gsl
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{
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// [views.constants], constants
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constexpr const std::size_t dynamic_extent = static_cast<std::size_t>(-1);
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constexpr std::size_t dynamic_extent = static_cast<std::size_t>(-1);
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template <class ElementType, std::size_t Extent = dynamic_extent>
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class span;
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@ -122,25 +122,30 @@ namespace details
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{
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};
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template <class type>
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template <class Type>
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class span_iterator
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{
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public:
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using iterator_category = std::random_access_iterator_tag;
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using value_type = std::remove_cv_t<type>;
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using difference_type = ptrdiff_t;
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using pointer = std::add_pointer_t<type>;
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using reference = std::add_lvalue_reference_t<type>;
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using value_type = std::remove_cv_t<Type>;
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using difference_type = std::ptrdiff_t;
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using pointer = Type*;
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using reference = Type&;
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#ifdef _MSC_VER
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using _Unchecked_type = typename pointer;
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using _Unchecked_type = pointer;
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#endif
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constexpr operator span_iterator<const type>() const noexcept
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constexpr operator span_iterator<const Type>() const noexcept
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{
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return {begin_, end_, current_};
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}
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constexpr reference operator*() const noexcept { return *operator->(); }
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constexpr reference operator*() const noexcept
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{
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Expects(begin_ && current_ && end_);
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Expects(current_ < end_);
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return *current_;
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}
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constexpr pointer operator->() const noexcept
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{
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@ -194,7 +199,7 @@ namespace details
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}
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friend constexpr span_iterator operator+(const difference_type n,
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span_iterator const& rhs) noexcept
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const span_iterator& rhs) noexcept
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{
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return rhs + n;
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}
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@ -214,18 +219,12 @@ namespace details
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return ret -= n;
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}
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friend constexpr span_iterator operator-(const difference_type n,
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span_iterator const& rhs) noexcept
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{
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return rhs - n;
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}
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template <
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class type2,
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std::enable_if_t<std::is_same<std::remove_cv_t<type2>, value_type>::value, int> = 0>
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constexpr difference_type operator-(const span_iterator<type2>& rhs) const noexcept
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class Type2,
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std::enable_if_t<std::is_same<std::remove_cv_t<Type2>, value_type>::value, int> = 0>
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constexpr difference_type operator-(const span_iterator<Type2>& rhs) const noexcept
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{
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Expects(begin_ == rhs.begin_);
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Expects(begin_ == rhs.begin_ && end_ == rhs.end_);
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return current_ - rhs.current_;
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}
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@ -235,52 +234,52 @@ namespace details
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}
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template <
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class type2,
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std::enable_if_t<std::is_same<std::remove_cv_t<type2>, value_type>::value, int> = 0>
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constexpr bool operator==(const span_iterator<type2>& rhs) const noexcept
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class Type2,
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std::enable_if_t<std::is_same<std::remove_cv_t<Type2>, value_type>::value, int> = 0>
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constexpr bool operator==(const span_iterator<Type2>& rhs) const noexcept
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{
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return begin_ == rhs.begin_ && current_ == rhs.current_;
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return begin_ == rhs.begin_ && end_ == rhs.end_ && current_ == rhs.current_;
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}
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template <
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class type2,
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std::enable_if_t<std::is_same<std::remove_cv_t<type2>, value_type>::value, int> = 0>
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constexpr bool operator!=(const span_iterator<type2>& rhs) const noexcept
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class Type2,
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std::enable_if_t<std::is_same<std::remove_cv_t<Type2>, value_type>::value, int> = 0>
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constexpr bool operator!=(const span_iterator<Type2>& rhs) const noexcept
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{
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return !(*this == rhs);
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}
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template <
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class type2,
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std::enable_if_t<std::is_same<std::remove_cv_t<type2>, value_type>::value, int> = 0>
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constexpr bool operator<(const span_iterator<type2>& rhs) const noexcept
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class Type2,
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std::enable_if_t<std::is_same<std::remove_cv_t<Type2>, value_type>::value, int> = 0>
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constexpr bool operator<(const span_iterator<Type2>& rhs) const noexcept
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{
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Expects(begin_ == rhs.begin_);
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Expects(begin_ == rhs.begin_ && end_ == rhs.end_);
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return current_ < rhs.current_;
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}
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template <
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class type2,
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std::enable_if_t<std::is_same<std::remove_cv_t<type2>, value_type>::value, int> = 0>
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constexpr bool operator>(const span_iterator<type2>& rhs) const noexcept
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class Type2,
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std::enable_if_t<std::is_same<std::remove_cv_t<Type2>, value_type>::value, int> = 0>
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constexpr bool operator>(const span_iterator<Type2>& rhs) const noexcept
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{
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return !(*this < rhs);
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}
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template <
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class type2,
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std::enable_if_t<std::is_same<std::remove_cv_t<type2>, value_type>::value, int> = 0>
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constexpr bool operator<=(const span_iterator<type2>& rhs) const noexcept
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class Type2,
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std::enable_if_t<std::is_same<std::remove_cv_t<Type2>, value_type>::value, int> = 0>
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constexpr bool operator<=(const span_iterator<Type2>& rhs) const noexcept
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{
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return *this < rhs || *this == rhs;
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return !(*this > rhs);
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}
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template <
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class type2,
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std::enable_if_t<std::is_same<std::remove_cv_t<type2>, value_type>::value, int> = 0>
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constexpr bool operator>=(const span_iterator<type2>& rhs) const noexcept
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class Type2,
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std::enable_if_t<std::is_same<std::remove_cv_t<Type2>, value_type>::value, int> = 0>
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constexpr bool operator>=(const span_iterator<Type2>& rhs) const noexcept
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{
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return *this > rhs || *this == rhs;
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return *!(this < rhs);
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}
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#ifdef _MSC_VER
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@ -290,7 +289,8 @@ namespace details
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friend constexpr void _Verify_range(span_iterator lhs, span_iterator rhs) noexcept
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{ // test that [lhs, rhs) forms a valid range inside an STL algorithm
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Expects(lhs.begin_ == rhs.begin_ // range spans have to match
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&& lhs.end_ <= rhs.end_); // range must not be transposed
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&& lhs.end_ == rhs.end_ &&
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lhs.current_ <= rhs.current_); // range must not be transposed
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}
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constexpr void _Verify_offset(const difference_type n) const noexcept
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@ -299,7 +299,7 @@ namespace details
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Expects((current_ + n) >= begin_ && (current_ + n) <= end_);
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}
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GSL_SUPPRESS(bounds.1) // NO-FORMAT: attribute
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GSL_SUPPRESS(bounds .1) // NO-FORMAT: attribute
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constexpr pointer _Unwrapped() const noexcept
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{ // after seeking *this to a high water mark, or using one of the
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// _Verify_xxx functions above, unwrap this span_iterator to a raw
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@ -314,7 +314,7 @@ namespace details
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#else
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static constexpr bool _Unwrap_when_unverified = false;
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#endif
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GSL_SUPPRESS(con.3) // NO-FORMAT: attribute // TODO: false positive
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GSL_SUPPRESS(con .3) // NO-FORMAT: attribute // TODO: false positive
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constexpr void _Seek_to(const pointer p) noexcept
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{ // adjust the position of *this to previously verified location p
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// after _Unwrapped
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@ -487,7 +487,7 @@ public:
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}
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template <std::size_t Count>
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GSL_SUPPRESS(bounds.1) // NO-FORMAT: attribute
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GSL_SUPPRESS(bounds .1) // NO-FORMAT: attribute
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constexpr span<element_type, Count> last() const noexcept
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{
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Expects(size() >= Count);
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@ -495,12 +495,11 @@ public:
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}
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template <std::size_t Offset, std::size_t Count = dynamic_extent>
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GSL_SUPPRESS(bounds.1) // NO-FORMAT: attribute
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GSL_SUPPRESS(bounds .1) // NO-FORMAT: attribute
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constexpr auto subspan() const noexcept ->
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typename details::calculate_subspan_type<ElementType, Extent, Offset, Count>::type
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{
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Expects((size() >= Offset) &&
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(Count == dynamic_extent || (Count <= size() - Offset)));
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Expects((size() >= Offset) && (Count == dynamic_extent || (Count <= size() - Offset)));
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return {data() + Offset, Count == dynamic_extent ? size() - Offset : Count};
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}
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@ -533,7 +532,7 @@ public:
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constexpr bool empty() const noexcept { return size() == 0; }
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// [span.elem], span element access
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GSL_SUPPRESS(bounds.1) // NO-FORMAT: attribute
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GSL_SUPPRESS(bounds .1) // NO-FORMAT: attribute
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constexpr reference operator[](index_type idx) const noexcept
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{
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Expects(idx < size());
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@ -569,7 +568,10 @@ public:
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constexpr iterator end() const noexcept { return {data(), data() + size(), data() + size()}; }
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constexpr const_iterator cbegin() const noexcept { return {data(), data() + size(), data()}; }
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constexpr const_iterator cend() const noexcept { return {data(), data() + size(), data() + size()}; }
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constexpr const_iterator cend() const noexcept
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{
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return {data(), data() + size(), data() + size()};
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}
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constexpr reverse_iterator rbegin() const noexcept { return reverse_iterator{end()}; }
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constexpr reverse_iterator rend() const noexcept { return reverse_iterator{begin()}; }
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@ -588,7 +590,7 @@ public:
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constexpr pointer _Unchecked_begin() const noexcept { return data(); }
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constexpr pointer _Unchecked_end() const noexcept
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{
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GSL_SUPPRESS(bounds.1) // NO-FORMAT: attribute
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GSL_SUPPRESS(bounds .1) // NO-FORMAT: attribute
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return data() + size();
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}
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#endif // _MSC_VER
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@ -648,7 +650,7 @@ private:
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return tmp.subspan(offset, count);
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}
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GSL_SUPPRESS(bounds.1) // NO-FORMAT: attribute
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GSL_SUPPRESS(bounds .1) // NO-FORMAT: attribute
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span<element_type, dynamic_extent> make_subspan(index_type offset, index_type count,
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subspan_selector<dynamic_extent>) const
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{
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@ -728,7 +730,7 @@ template <class ElementType, std::size_t Extent>
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span<const byte, details::calculate_byte_size<ElementType, Extent>::value>
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as_bytes(span<ElementType, Extent> s) noexcept
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{
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GSL_SUPPRESS(type.1) // NO-FORMAT: attribute
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GSL_SUPPRESS(type .1) // NO-FORMAT: attribute
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return {reinterpret_cast<const byte*>(s.data()), s.size_bytes()};
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}
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@ -737,7 +739,7 @@ template <class ElementType, std::size_t Extent,
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span<byte, details::calculate_byte_size<ElementType, Extent>::value>
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as_writeable_bytes(span<ElementType, Extent> s) noexcept
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{
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GSL_SUPPRESS(type.1) // NO-FORMAT: attribute
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GSL_SUPPRESS(type .1) // NO-FORMAT: attribute
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return {reinterpret_cast<byte*>(s.data()), s.size_bytes()};
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}
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