mirror of
https://github.com/microsoft/GSL.git
synced 2024-11-03 17:56:43 -05:00
Merging Microsoft/GSL:master.
This commit is contained in:
Kern Handa
commit
3b088614bc
@ -16,6 +16,9 @@
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#pragma once
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#ifndef GSL_ARRAY_VIEW_H
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#define GSL_ARRAY_VIEW_H
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#include <new>
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#include <stdexcept>
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#include <cstddef>
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@ -71,20 +74,20 @@ namespace details
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};
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template <typename ConcreteType, typename ValueType, unsigned int Rank>
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template <typename ConcreteType, typename ValueType, size_t Rank>
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class coordinate_facade
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{
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static_assert(std::is_integral<ValueType>::value
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&& sizeof(ValueType) <= sizeof(size_t), "ValueType must be unsigned integral type!");
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static_assert(Rank > 0, "Rank must be greater than 0!");
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template <typename OtherConcreteType, typename OtherValueType, unsigned int OtherRank>
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template <typename OtherConcreteType, typename OtherValueType, size_t OtherRank>
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friend class coordinate_facade;
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public:
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using value_type = typename std::remove_reference<ValueType>::type;
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using reference = typename std::add_lvalue_reference<value_type>::type;
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using const_reference = typename std::add_lvalue_reference<typename std::add_const<value_type>::type>::type;
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static const unsigned int rank = Rank;
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static const size_t rank = Rank;
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_CONSTEXPR coordinate_facade() _NOEXCEPT
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{
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static_assert(std::is_base_of<coordinate_facade, ConcreteType>::value, "ConcreteType must be derived from coordinate_facade.");
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@ -92,7 +95,7 @@ namespace details
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_CONSTEXPR coordinate_facade(const value_type(&values)[rank]) _NOEXCEPT
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{
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static_assert(std::is_base_of<coordinate_facade, ConcreteType>::value, "ConcreteType must be derived from coordinate_facade.");
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for (unsigned int i = 0; i < rank; ++i)
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for (size_t i = 0; i < rank; ++i)
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elems[i] = values[i];
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}
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_CONSTEXPR coordinate_facade(value_type e0) _NOEXCEPT
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@ -106,7 +109,7 @@ namespace details
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{
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static_assert(std::is_base_of<coordinate_facade, ConcreteType>::value, "ConcreteType must be derived from coordinate_facade.");
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fail_fast_assert(il.size() == rank, "The size of the initializer list must match the rank of the array");
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for (unsigned int i = 0; i < rank; ++i)
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for (size_t i = 0; i < rank; ++i)
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{
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elems[i] = begin(il)[i];
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}
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@ -117,7 +120,7 @@ namespace details
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template <typename OtherConcreteType, typename OtherValueType>
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_CONSTEXPR coordinate_facade(const coordinate_facade<OtherConcreteType, OtherValueType, Rank> & other)
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{
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for (unsigned int i = 0; i < rank; ++i)
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for (size_t i = 0; i < rank; ++i)
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{
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fail_fast_assert(static_cast<size_t>(other.elems[i]) <= SizeTypeTraits<value_type>::max_value);
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elems[i] = static_cast<value_type>(other.elems[i]);
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@ -126,20 +129,20 @@ namespace details
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protected:
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coordinate_facade& operator=(const coordinate_facade& rhs) = default;
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// Preconditions: component_idx < rank
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_CONSTEXPR reference operator[](unsigned int component_idx)
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_CONSTEXPR reference operator[](size_t component_idx)
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{
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fail_fast_assert(component_idx < rank, "Component index must be less than rank");
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return elems[component_idx];
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}
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// Preconditions: component_idx < rank
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_CONSTEXPR const_reference operator[](unsigned int component_idx) const
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_CONSTEXPR const_reference operator[](size_t component_idx) const
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{
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fail_fast_assert(component_idx < rank, "Component index must be less than rank");
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return elems[component_idx];
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}
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_CONSTEXPR bool operator==(const ConcreteType& rhs) const _NOEXCEPT
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{
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for (unsigned int i = 0; i < rank; ++i)
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for (size_t i = 0; i < rank; ++i)
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{
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if (elems[i] != rhs.elems[i])
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return false;
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@ -157,7 +160,7 @@ namespace details
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_CONSTEXPR ConcreteType operator-() const
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{
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ConcreteType ret = to_concrete();
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for (unsigned int i = 0; i < rank; ++i)
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for (size_t i = 0; i < rank; ++i)
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ret.elems[i] = -ret.elems[i];
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return ret;
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}
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@ -175,13 +178,13 @@ namespace details
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}
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_CONSTEXPR ConcreteType& operator+=(const ConcreteType& rhs)
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{
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for (unsigned int i = 0; i < rank; ++i)
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for (size_t i = 0; i < rank; ++i)
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elems[i] += rhs.elems[i];
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return to_concrete();
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}
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_CONSTEXPR ConcreteType& operator-=(const ConcreteType& rhs)
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{
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for (unsigned int i = 0; i < rank; ++i)
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for (size_t i = 0; i < rank; ++i)
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elems[i] -= rhs.elems[i];
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return to_concrete();
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}
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@ -229,13 +232,13 @@ namespace details
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}
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_CONSTEXPR ConcreteType& operator*=(value_type v)
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{
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for (unsigned int i = 0; i < rank; ++i)
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for (size_t i = 0; i < rank; ++i)
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elems[i] *= v;
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return to_concrete();
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}
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_CONSTEXPR ConcreteType& operator/=(value_type v)
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{
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for (unsigned int i = 0; i < rank; ++i)
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for (size_t i = 0; i < rank; ++i)
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elems[i] /= v;
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return to_concrete();
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}
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@ -270,12 +273,12 @@ namespace details
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};
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}
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template <unsigned int Rank, typename ValueType = size_t>
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template <size_t Rank, typename ValueType = size_t>
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class index : private details::coordinate_facade<index<Rank, ValueType>, ValueType, Rank>
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{
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using Base = details::coordinate_facade<index<Rank, ValueType>, ValueType, Rank>;
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friend Base;
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template <unsigned int OtherRank, typename OtherValueType>
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template <size_t OtherRank, typename OtherValueType>
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friend class index;
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public:
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using Base::rank;
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@ -317,10 +320,10 @@ public:
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template <typename ValueType>
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class index<1, ValueType>
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{
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template <unsigned int, typename OtherValueType>
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template <size_t, typename OtherValueType>
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friend class index;
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public:
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static const unsigned int rank = 1;
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static const size_t rank = 1;
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using reference = ValueType&;
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using const_reference = const ValueType&;
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using size_type = ValueType;
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@ -537,8 +540,8 @@ namespace details
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template <typename SizeType, size_t... Ranges>
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struct BoundsRanges {
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static const unsigned int Depth = 0;
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static const unsigned int DynamicNum = 0;
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static const size_t Depth = 0;
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static const size_t DynamicNum = 0;
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static const SizeType CurrentRange = 1;
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static const SizeType TotalSize = 1;
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@ -551,14 +554,14 @@ namespace details
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BoundsRanges() = default;
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template <typename T, unsigned int Dim>
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template <typename T, size_t Dim>
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void serialize(T &) const {
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}
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template <typename T, unsigned int Dim>
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SizeType linearize(const T &) const {
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template <typename T, size_t Dim>
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SizeType linearize(const T &) const {
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return 0;
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}
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template <typename T, unsigned int Dim>
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template <typename T, size_t Dim>
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ptrdiff_t contains(const T &) const {
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return 0;
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}
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@ -576,8 +579,8 @@ namespace details
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template <typename SizeType, size_t... RestRanges>
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struct BoundsRanges <SizeType, dynamic_range, RestRanges...> : BoundsRanges<SizeType, RestRanges...>{
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using Base = BoundsRanges <SizeType, RestRanges... >;
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static const unsigned int Depth = Base::Depth + 1;
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static const unsigned int DynamicNum = Base::DynamicNum + 1;
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static const size_t Depth = Base::Depth + 1;
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static const size_t DynamicNum = Base::DynamicNum + 1;
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static const SizeType CurrentRange = dynamic_range;
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static const SizeType TotalSize = dynamic_range;
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const SizeType m_bound;
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@ -596,19 +599,19 @@ namespace details
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{
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}
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template <typename T, unsigned int Dim = 0>
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template <typename T, size_t Dim = 0>
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void serialize(T & arr) const {
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arr[Dim] = elementNum();
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this->Base::template serialize<T, Dim + 1>(arr);
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}
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template <typename T, unsigned int Dim = 0>
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SizeType linearize(const T & arr) const {
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template <typename T, size_t Dim = 0>
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SizeType linearize(const T & arr) const {
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const size_t index = this->Base::totalSize() * arr[Dim];
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fail_fast_assert(index < static_cast<size_t>(m_bound));
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return static_cast<SizeType>(index) + this->Base::template linearize<T, Dim + 1>(arr);
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}
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template <typename T, unsigned int Dim = 0>
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template <typename T, size_t Dim = 0>
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ptrdiff_t contains(const T & arr) const {
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const ptrdiff_t last = this->Base::template contains<T, Dim + 1>(arr);
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if (last == -1)
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@ -624,8 +627,8 @@ namespace details
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SizeType elementNum() const _NOEXCEPT {
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return static_cast<SizeType>(totalSize() / this->Base::totalSize());
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}
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SizeType elementNum(unsigned int dim) const _NOEXCEPT{
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SizeType elementNum(size_t dim) const _NOEXCEPT{
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if (dim > 0)
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return this->Base::elementNum(dim - 1);
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else
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@ -641,8 +644,8 @@ namespace details
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template <typename SizeType, size_t CurRange, size_t... RestRanges>
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struct BoundsRanges <SizeType, CurRange, RestRanges...> : BoundsRanges<SizeType, RestRanges...>{
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using Base = BoundsRanges <SizeType, RestRanges... >;
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static const unsigned int Depth = Base::Depth + 1;
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static const unsigned int DynamicNum = Base::DynamicNum;
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static const size_t Depth = Base::Depth + 1;
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static const size_t DynamicNum = Base::DynamicNum;
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static const SizeType CurrentRange = static_cast<SizeType>(CurRange);
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static const SizeType TotalSize = StaticSizeHelper<SizeType, Base::TotalSize, CurrentRange>::value;
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static_assert (CurRange <= SizeTypeTraits<SizeType>::max_value, "CurRange must be smaller than SizeType limits");
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@ -657,19 +660,19 @@ namespace details
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fail_fast_assert((firstLevel && totalSize() <= other.totalSize()) || totalSize() == other.totalSize());
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}
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template <typename T, unsigned int Dim = 0>
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template <typename T, size_t Dim = 0>
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void serialize(T & arr) const {
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arr[Dim] = elementNum();
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this->Base::template serialize<T, Dim + 1>(arr);
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}
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template <typename T, unsigned int Dim = 0>
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SizeType linearize(const T & arr) const {
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template <typename T, size_t Dim = 0>
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SizeType linearize(const T & arr) const {
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fail_fast_assert(arr[Dim] < CurrentRange, "Index is out of range");
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return static_cast<SizeType>(this->Base::totalSize()) * arr[Dim] + this->Base::template linearize<T, Dim + 1>(arr);
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}
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template <typename T, unsigned int Dim = 0>
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template <typename T, size_t Dim = 0>
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ptrdiff_t contains(const T & arr) const {
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if (static_cast<size_t>(arr[Dim]) >= CurrentRange)
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return -1;
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@ -687,7 +690,7 @@ namespace details
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return CurrentRange;
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}
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SizeType elementNum(unsigned int dim) const _NOEXCEPT{
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SizeType elementNum(size_t dim) const _NOEXCEPT{
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if (dim > 0)
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return this->Base::elementNum(dim - 1);
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else
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@ -732,17 +735,17 @@ namespace details
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{
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const TypeChain & obj;
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TypeListIndexer(const TypeChain & obj) :obj(obj){}
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template<unsigned int N>
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template<size_t N>
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const TypeChain & getObj(std::true_type)
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{
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return obj;
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}
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template<unsigned int N, typename MyChain = TypeChain, typename MyBase = typename MyChain::Base>
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template<size_t N, typename MyChain = TypeChain, typename MyBase = typename MyChain::Base>
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auto getObj(std::false_type) -> decltype(TypeListIndexer<MyBase>(static_cast<const MyBase &>(obj)).template get<N>())
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{
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return TypeListIndexer<MyBase>(static_cast<const MyBase &>(obj)).template get<N>();
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}
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template <unsigned int N>
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template <size_t N>
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auto get() -> decltype(getObj<N - 1>(std::integral_constant<bool, true>()))
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{
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return getObj<N - 1>(std::integral_constant<bool, N == 0>());
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@ -779,8 +782,8 @@ class static_bounds<SizeType, FirstRange, RestRanges...>
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template <typename SizeType2, size_t... Ranges2>
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friend class static_bounds;
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public:
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static const unsigned int rank = MyRanges::Depth;
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static const unsigned int dynamic_rank = MyRanges::DynamicNum;
|
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static const size_t rank = MyRanges::Depth;
|
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static const size_t dynamic_rank = MyRanges::DynamicNum;
|
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static const SizeType static_size = static_cast<SizeType>(MyRanges::TotalSize);
|
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|
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using size_type = SizeType;
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@ -843,13 +846,13 @@ public:
|
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{
|
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return m_ranges.contains(idx) != -1;
|
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}
|
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|
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_CONSTEXPR size_type operator[](unsigned int index) const _NOEXCEPT
|
||||
|
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_CONSTEXPR size_type operator[](size_t index) const _NOEXCEPT
|
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{
|
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return m_ranges.elementNum(index);
|
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}
|
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|
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template <unsigned int Dim = 0>
|
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|
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template <size_t Dim = 0>
|
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_CONSTEXPR size_type extent() const _NOEXCEPT
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{
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static_assert(Dim < rank, "dimension should be less than rank (dimension count starts from 0)");
|
||||
@ -888,12 +891,12 @@ public:
|
||||
}
|
||||
};
|
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|
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template <unsigned int Rank, typename SizeType = size_t>
|
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template <size_t Rank, typename SizeType = size_t>
|
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class strided_bounds : private details::coordinate_facade<strided_bounds<Rank>, SizeType, Rank>
|
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{
|
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using Base = details::coordinate_facade<strided_bounds<Rank>, SizeType, Rank>;
|
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friend Base;
|
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template <unsigned int OtherRank, typename OtherSizeType>
|
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template <size_t OtherRank, typename OtherSizeType>
|
||||
friend class strided_bounds;
|
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|
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public:
|
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@ -921,7 +924,7 @@ public:
|
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_CONSTEXPR strided_bounds(const index_type &extents, const index_type &strides)
|
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: m_strides(strides)
|
||||
{
|
||||
for (unsigned int i = 0; i < rank; i++)
|
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for (size_t i = 0; i < rank; i++)
|
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Base::elems[i] = extents[i];
|
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}
|
||||
_CONSTEXPR strided_bounds(const value_type(&values)[rank], index_type strides)
|
||||
@ -935,20 +938,20 @@ public:
|
||||
_CONSTEXPR size_type total_size() const _NOEXCEPT
|
||||
{
|
||||
size_type ret = 0;
|
||||
for (unsigned int i = 0; i < rank; ++i)
|
||||
for (size_t i = 0; i < rank; ++i)
|
||||
ret += (Base::elems[i] - 1) * m_strides[i];
|
||||
return ret + 1;
|
||||
}
|
||||
_CONSTEXPR size_type size() const _NOEXCEPT
|
||||
{
|
||||
size_type ret = 1;
|
||||
for (unsigned int i = 0; i < rank; ++i)
|
||||
for (size_t i = 0; i < rank; ++i)
|
||||
ret *= Base::elems[i];
|
||||
return ret;
|
||||
}
|
||||
_CONSTEXPR bool contains(const index_type& idx) const _NOEXCEPT
|
||||
{
|
||||
for (unsigned int i = 0; i < rank; ++i)
|
||||
for (size_t i = 0; i < rank; ++i)
|
||||
{
|
||||
if (idx[i] < 0 || idx[i] >= Base::elems[i])
|
||||
return false;
|
||||
@ -958,7 +961,7 @@ public:
|
||||
_CONSTEXPR size_type linearize(const index_type & idx) const
|
||||
{
|
||||
size_type ret = 0;
|
||||
for (unsigned int i = 0; i < rank; i++)
|
||||
for (size_t i = 0; i < rank; i++)
|
||||
{
|
||||
fail_fast_assert(idx[i] < Base::elems[i], "index is out of bounds of the array");
|
||||
ret += idx[i] * m_strides[i];
|
||||
@ -974,7 +977,7 @@ public:
|
||||
{
|
||||
return{ (value_type(&)[rank - 1])Base::elems[1], sliced_type::index_type::shift_left(m_strides) };
|
||||
}
|
||||
template <unsigned int Dim = 0>
|
||||
template <size_t Dim = 0>
|
||||
_CONSTEXPR size_type extent() const _NOEXCEPT
|
||||
{
|
||||
static_assert(Dim < Rank, "dimension should be less than rank (dimension count starts from 0)");
|
||||
@ -1000,7 +1003,7 @@ template <typename T>
|
||||
struct is_bounds : std::integral_constant<bool, false> {};
|
||||
template <typename SizeType, size_t... Ranges>
|
||||
struct is_bounds<static_bounds<SizeType, Ranges...>> : std::integral_constant<bool, true> {};
|
||||
template <unsigned int Rank, typename SizeType>
|
||||
template <size_t Rank, typename SizeType>
|
||||
struct is_bounds<strided_bounds<Rank, SizeType>> : std::integral_constant<bool, true> {};
|
||||
|
||||
template <typename IndexType>
|
||||
@ -1014,7 +1017,7 @@ class bounds_iterator
|
||||
private:
|
||||
using Base = std::iterator <std::random_access_iterator_tag, IndexType, ptrdiff_t, const details::arrow_proxy<IndexType>, const IndexType>;
|
||||
public:
|
||||
static const unsigned int rank = IndexType::rank;
|
||||
static const size_t rank = IndexType::rank;
|
||||
using typename Base::reference;
|
||||
using typename Base::pointer;
|
||||
using typename Base::difference_type;
|
||||
@ -1038,7 +1041,7 @@ public:
|
||||
}
|
||||
bounds_iterator& operator++() _NOEXCEPT
|
||||
{
|
||||
for (unsigned int i = rank; i-- > 0;)
|
||||
for (size_t i = rank; i-- > 0;)
|
||||
{
|
||||
if (++curr[i] < boundary[i])
|
||||
{
|
||||
@ -1050,7 +1053,7 @@ public:
|
||||
}
|
||||
}
|
||||
// If we're here we've wrapped over - set to past-the-end.
|
||||
for (unsigned int i = 0; i < rank; ++i)
|
||||
for (size_t i = 0; i < rank; ++i)
|
||||
{
|
||||
curr[i] = boundary[i];
|
||||
}
|
||||
@ -1096,11 +1099,11 @@ public:
|
||||
auto linear_idx = linearize(curr) + n;
|
||||
value_type stride;
|
||||
stride[rank - 1] = 1;
|
||||
for (unsigned int i = rank - 1; i-- > 0;)
|
||||
for (size_t i = rank - 1; i-- > 0;)
|
||||
{
|
||||
stride[i] = stride[i + 1] * boundary[i + 1];
|
||||
}
|
||||
for (unsigned int i = 0; i < rank; ++i)
|
||||
for (size_t i = 0; i < rank; ++i)
|
||||
{
|
||||
curr[i] = linear_idx / stride[i];
|
||||
linear_idx = linear_idx % stride[i];
|
||||
@ -1134,7 +1137,7 @@ public:
|
||||
}
|
||||
bool operator<(const bounds_iterator& rhs) const _NOEXCEPT
|
||||
{
|
||||
for (unsigned int i = 0; i < rank; ++i)
|
||||
for (size_t i = 0; i < rank; ++i)
|
||||
{
|
||||
if (curr[i] < rhs.curr[i])
|
||||
return true;
|
||||
@ -1164,7 +1167,7 @@ private:
|
||||
// TODO: Smarter impl.
|
||||
// Check if past-the-end
|
||||
bool pte = true;
|
||||
for (unsigned int i = 0; i < rank; ++i)
|
||||
for (size_t i = 0; i < rank; ++i)
|
||||
{
|
||||
if (idx[i] != boundary[i])
|
||||
{
|
||||
@ -1177,7 +1180,7 @@ private:
|
||||
if (pte)
|
||||
{
|
||||
res = 1;
|
||||
for (unsigned int i = rank; i-- > 0;)
|
||||
for (size_t i = rank; i-- > 0;)
|
||||
{
|
||||
res += (idx[i] - 1) * multiplier;
|
||||
multiplier *= boundary[i];
|
||||
@ -1185,7 +1188,7 @@ private:
|
||||
}
|
||||
else
|
||||
{
|
||||
for (unsigned int i = rank; i-- > 0;)
|
||||
for (size_t i = rank; i-- > 0;)
|
||||
{
|
||||
res += idx[i] * multiplier;
|
||||
multiplier *= boundary[i];
|
||||
@ -1359,7 +1362,7 @@ template <typename ValueType, typename BoundsType>
|
||||
class basic_array_view
|
||||
{
|
||||
public:
|
||||
static const unsigned int rank = BoundsType::rank;
|
||||
static const size_t rank = BoundsType::rank;
|
||||
using bounds_type = BoundsType;
|
||||
using size_type = typename bounds_type::size_type;
|
||||
using index_type = typename bounds_type::index_type;
|
||||
@ -1381,7 +1384,7 @@ public:
|
||||
{
|
||||
return m_bounds;
|
||||
}
|
||||
template <unsigned int Dim = 0>
|
||||
template <size_t Dim = 0>
|
||||
_CONSTEXPR size_type extent() const _NOEXCEPT
|
||||
{
|
||||
static_assert(Dim < rank, "dimension should be less than rank (dimension count starts from 0)");
|
||||
@ -1537,7 +1540,7 @@ struct dim<dynamic_range>
|
||||
|
||||
template <typename ValueTypeOpt, size_t FirstDimension = dynamic_range, size_t... RestDimensions>
|
||||
class array_view;
|
||||
template <typename ValueTypeOpt, unsigned int Rank>
|
||||
template <typename ValueTypeOpt, size_t Rank>
|
||||
class strided_array_view;
|
||||
|
||||
namespace details
|
||||
@ -1616,7 +1619,7 @@ namespace details
|
||||
template <typename ValueType, size_t FirstDimension, size_t... RestDimensions>
|
||||
struct is_array_view_oracle<array_view<ValueType, FirstDimension, RestDimensions...>> : std::true_type
|
||||
{};
|
||||
template <typename ValueType, unsigned int Rank>
|
||||
template <typename ValueType, size_t Rank>
|
||||
struct is_array_view_oracle<strided_array_view<ValueType, Rank>> : std::true_type
|
||||
{};
|
||||
template <typename T>
|
||||
@ -1930,12 +1933,12 @@ template <typename Cont>
|
||||
_CONSTEXPR auto as_array_view(Cont &&arr) -> std::enable_if_t<!details::is_array_view<std::decay_t<Cont>>::value,
|
||||
array_view<std::remove_reference_t<decltype(arr.size(), *arr.data())>, dynamic_range>> = delete;
|
||||
|
||||
template <typename ValueTypeOpt, unsigned int Rank>
|
||||
template <typename ValueTypeOpt, size_t Rank>
|
||||
class strided_array_view : public basic_array_view<typename details::ArrayViewTypeTraits<ValueTypeOpt>::value_type, strided_bounds<Rank, typename details::ArrayViewTypeTraits<ValueTypeOpt>::size_type>>
|
||||
{
|
||||
using Base = basic_array_view<typename details::ArrayViewTypeTraits<ValueTypeOpt>::value_type, strided_bounds<Rank, typename details::ArrayViewTypeTraits<ValueTypeOpt>::size_type>>;
|
||||
|
||||
template<typename OtherValueOpt, unsigned int OtherRank>
|
||||
template<typename OtherValueOpt, size_t OtherRank>
|
||||
friend class strided_array_view;
|
||||
public:
|
||||
using Base::rank;
|
||||
@ -2286,3 +2289,5 @@ general_array_view_iterator<ArrayView> operator+(typename general_array_view_ite
|
||||
#endif // _MSC_VER <= 1800
|
||||
|
||||
#pragma pop_macro("_NOEXCEPT")
|
||||
|
||||
#endif // GSL_ARRAY_VIEW_H
|
||||
|
||||
@ -16,6 +16,9 @@
|
||||
|
||||
#pragma once
|
||||
|
||||
#ifndef GSL_FAIL_FAST_H
|
||||
#define GSL_FAIL_FAST_H
|
||||
|
||||
#include <exception>
|
||||
#include <stdexcept>
|
||||
|
||||
@ -45,3 +48,5 @@ inline void fail_fast_assert(bool cond, const char* const) { if (!cond) std::ter
|
||||
#endif // SAFER_CPP_TESTING
|
||||
|
||||
}
|
||||
|
||||
#endif // GSL_FAIL_FAST_H
|
||||
|
||||
@ -16,6 +16,9 @@
|
||||
|
||||
#pragma once
|
||||
|
||||
#ifndef GSL_GSL_H
|
||||
#define GSL_GSL_H
|
||||
|
||||
#include "array_view.h" // array_view, strided_array_view...
|
||||
#include "string_view.h" // zstring, string_view, zstring_builder...
|
||||
#include <memory>
|
||||
@ -47,7 +50,7 @@ template <class F>
|
||||
class Final_act
|
||||
{
|
||||
public:
|
||||
explicit Final_act(F f) : f_(f) {}
|
||||
explicit Final_act(F f) : f_(std::move(f)) {}
|
||||
|
||||
Final_act(const Final_act&& other) : f_(other.f_) {}
|
||||
Final_act(const Final_act&) = delete;
|
||||
@ -61,7 +64,10 @@ private:
|
||||
|
||||
// finally() - convenience function to generate a Final_act
|
||||
template <class F>
|
||||
Final_act<F> finally(F f) { return Final_act<F>(f); }
|
||||
Final_act<F> finally(const F &f) { return Final_act<F>(f); }
|
||||
|
||||
template <class F>
|
||||
Final_act<F> finally(F &&f) { return Final_act<F>(std::forward<F>(f)); }
|
||||
|
||||
// narrow_cast(): a searchable way to do narrowing casts of values
|
||||
template<class T, class U>
|
||||
@ -102,6 +108,7 @@ typename Cont::value_type& at(Cont& cont, size_t index) { fail_fast_assert(index
|
||||
template<class T>
|
||||
class not_null
|
||||
{
|
||||
static_assert(std::is_assignable<T&, std::nullptr_t>::value, "T cannot be assigned nullptr.");
|
||||
public:
|
||||
not_null(T t) : ptr_(t) { ensure_invariant(); }
|
||||
|
||||
@ -162,6 +169,7 @@ private:
|
||||
template<class T>
|
||||
class maybe_null_dbg
|
||||
{
|
||||
static_assert(std::is_assignable<T&, std::nullptr_t>::value, "T cannot be assigned nullptr.");
|
||||
public:
|
||||
maybe_null_dbg() : ptr_(nullptr), tested_(false) {}
|
||||
|
||||
@ -237,6 +245,7 @@ private:
|
||||
template<class T>
|
||||
class maybe_null_ret
|
||||
{
|
||||
static_assert(std::is_assignable<T&, std::nullptr_t>::value, "T cannot be assigned nullptr.");
|
||||
public:
|
||||
maybe_null_ret() : ptr_(nullptr) {}
|
||||
maybe_null_ret(std::nullptr_t) : ptr_(nullptr) {}
|
||||
@ -287,3 +296,5 @@ private:
|
||||
template<class T> using maybe_null = maybe_null_ret<T>;
|
||||
|
||||
} // namespace Guide
|
||||
|
||||
#endif // GSL_GSL_H
|
||||
|
||||
@ -16,6 +16,9 @@
|
||||
|
||||
#pragma once
|
||||
|
||||
#ifndef GSL_STRING_VIEW_H
|
||||
#define GSL_STRING_VIEW_H
|
||||
|
||||
#include "array_view.h"
|
||||
#include <cstring>
|
||||
|
||||
@ -176,3 +179,5 @@ using zstring_builder = basic_zstring_builder<char, Max>;
|
||||
template <size_t Max = dynamic_range>
|
||||
using wzstring_builder = basic_zstring_builder<wchar_t, Max>;
|
||||
}
|
||||
|
||||
#endif // GSL_STRING_VIEW_H
|
||||
|
||||
@ -16,6 +16,7 @@
|
||||
|
||||
#include <UnitTest++/UnitTest++.h>
|
||||
#include <gsl.h>
|
||||
#include <vector>
|
||||
|
||||
using namespace Guide;
|
||||
|
||||
@ -27,12 +28,24 @@ SUITE(MaybeNullTests)
|
||||
{
|
||||
TEST(TestMaybeNull1)
|
||||
{
|
||||
#ifdef CONFIRM_COMPILATION_ERRORS
|
||||
// Forbid non-nullptr assignable types
|
||||
maybe_null_ret<std::vector<int>> f_ret(std::vector<int>{1});
|
||||
maybe_null_ret<std::vector<int>> f_ret(std::vector<int>{1});
|
||||
maybe_null_ret<int> z_ret(10);
|
||||
maybe_null_dbg<std::vector<int>> y_dbg({1,2});
|
||||
maybe_null_dbg<int> z_dbg(10);
|
||||
maybe_null_dbg<std::vector<int>> y_dbg({1,2});
|
||||
#endif
|
||||
int n = 5;
|
||||
maybe_null_dbg<int *> opt_n(&n);
|
||||
int result = 0;
|
||||
bool threw = false;
|
||||
|
||||
CHECK_THROW(result = *opt_n, fail_fast);
|
||||
|
||||
maybe_null_ret<std::shared_ptr<int>> x_ret(std::make_shared<int>(10)); // shared_ptr<int> is nullptr assignable
|
||||
maybe_null_dbg<std::shared_ptr<int>> x_dbg(std::make_shared<int>(10)); // shared_ptr<int> is nullptr assignable
|
||||
}
|
||||
|
||||
TEST(TestMaybeNull2)
|
||||
|
||||
@ -16,6 +16,7 @@
|
||||
|
||||
#include <UnitTest++/UnitTest++.h>
|
||||
#include <gsl.h>
|
||||
#include <vector>
|
||||
|
||||
using namespace Guide;
|
||||
|
||||
@ -48,11 +49,18 @@ SUITE(NotNullTests)
|
||||
not_null<int*> p; // yay...does not compile!
|
||||
std::unique_ptr<int> up = std::make_unique<int>(120);
|
||||
not_null<int*> p = up;
|
||||
|
||||
// Forbid non-nullptr assignable types
|
||||
not_null<std::vector<int>> f(std::vector<int>{1});
|
||||
not_null<int> z(10);
|
||||
not_null<std::vector<int>> y({1,2});
|
||||
#endif
|
||||
int i = 12;
|
||||
auto rp = RefCounted<int>(&i);
|
||||
not_null<int*> p(rp);
|
||||
CHECK(p.get() == &i);
|
||||
|
||||
not_null<std::shared_ptr<int>> x(std::make_shared<int>(10)); // shared_ptr<int> is nullptr assignable
|
||||
}
|
||||
|
||||
TEST(TestNotNullCasting)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user