Renamed byte header and tidied up string_span dependencies.

This commit is contained in:
Neil MacIntosh 2016-06-26 17:00:56 +03:00
parent b72d7abfb0
commit 267472449c
6 changed files with 208 additions and 137 deletions

View File

@ -21,7 +21,7 @@
#include "gsl_assert.h"
#include "gsl_util.h"
#include "byte.h"
#include "gsl_byte.h"
#include <algorithm>
#include <array>
#include <cassert>

View File

@ -21,7 +21,7 @@
#include "gsl_assert.h"
#include "gsl_util.h"
#include "byte.h"
#include "gsl_byte.h"
#include <array>
#include <limits>
#include <iterator>
@ -154,18 +154,21 @@ struct is_allowed_element_type_conversion<From, const byte>
};
template <class Span>
class span_iterator
: public std::iterator<std::random_access_iterator_tag, typename Span::element_type>
class const_span_iterator
{
using Base = std::iterator<std::random_access_iterator_tag, typename Span::element_type>;
public:
using typename Base::reference;
using typename Base::pointer;
using typename Base::difference_type;
using iterator_category = std::random_access_iterator_tag;
using value_type = typename Span::element_type;
using difference_type = std::ptrdiff_t;
constexpr span_iterator() : span_iterator(nullptr, 0) {}
constexpr span_iterator(const Span* span, typename Span::index_type index) : span_(span), index_(index)
using const_pointer = std::add_const_t<value_type*>;
using pointer = const_pointer;
using const_reference = std::add_const_t<value_type&>;
using reference = const_reference;
constexpr const_span_iterator() : const_span_iterator(nullptr, 0) {}
constexpr const_span_iterator(const Span* span, typename Span::index_type index) : span_(span), index_(index)
{
Expects(span == nullptr || (index_ >= 0 && index <= span_->length()));
}
@ -173,59 +176,59 @@ public:
constexpr reference operator*() const { Expects(span_); return (*span_)[index_]; }
constexpr pointer operator->() const { Expects(span_); return &((*span_)[index_]); }
constexpr span_iterator& operator++() noexcept
constexpr const_span_iterator& operator++() noexcept
{
Expects(span_ && index_ >= 0 && index_ < span_->length());
++index_;
return *this;
}
constexpr span_iterator operator++(int) noexcept
constexpr const_span_iterator operator++(int) noexcept
{
auto ret = *this;
++(*this);
return ret;
}
constexpr span_iterator& operator--() noexcept
constexpr const_span_iterator& operator--() noexcept
{
Expects(span_ && index > 0 && index_ <= span_->length());
--index_;
return *this;
}
constexpr span_iterator operator--(int) noexcept
constexpr const_span_iterator operator--(int) noexcept
{
auto ret = *this;
--(*this);
return ret;
}
constexpr span_iterator operator+(difference_type n) const noexcept
constexpr const_span_iterator operator+(difference_type n) const noexcept
{
auto ret{*this};
return ret += n;
}
constexpr span_iterator& operator+=(difference_type n) noexcept
constexpr const_span_iterator& operator+=(difference_type n) noexcept
{
index_ += n;
Expects(span_ && index_ >= 0 && index_ <= span_->length());
return *this;
}
constexpr span_iterator operator-(difference_type n) const noexcept
constexpr const_span_iterator operator-(difference_type n) const noexcept
{
auto ret{*this};
return ret -= n;
}
constexpr span_iterator& operator-=(difference_type n) noexcept
constexpr const_span_iterator& operator-=(difference_type n) noexcept
{
return *this += -n;
}
constexpr difference_type operator-(const span_iterator& rhs) const noexcept
constexpr difference_type operator-(const const_span_iterator& rhs) const noexcept
{
Expects(span_ == rhs.span_);
return index_ - rhs.index_;
@ -236,26 +239,26 @@ public:
return *(*this + n);
}
constexpr bool operator==(const span_iterator& rhs) const noexcept
constexpr bool operator==(const const_span_iterator& rhs) const noexcept
{
return span_ == rhs.span_ && index_ == rhs.index_;
}
constexpr bool operator!=(const span_iterator& rhs) const noexcept { return !(*this == rhs); }
constexpr bool operator!=(const const_span_iterator& rhs) const noexcept { return !(*this == rhs); }
constexpr bool operator<(const span_iterator& rhs) const noexcept
constexpr bool operator<(const const_span_iterator& rhs) const noexcept
{
Expects(span_ == rhs.span_);
return index_ < rhs.index_;
}
constexpr bool operator<=(const span_iterator& rhs) const noexcept { return !(rhs < *this); }
constexpr bool operator<=(const const_span_iterator& rhs) const noexcept { return !(rhs < *this); }
constexpr bool operator>(const span_iterator& rhs) const noexcept { return rhs < *this; }
constexpr bool operator>(const const_span_iterator& rhs) const noexcept { return rhs < *this; }
constexpr bool operator>=(const span_iterator& rhs) const noexcept { return !(rhs > *this); }
constexpr bool operator>=(const const_span_iterator& rhs) const noexcept { return !(rhs > *this); }
void swap(span_iterator& rhs) noexcept
void swap(const_span_iterator& rhs) noexcept
{
std::swap(index_, rhs.index_);
std::swap(m_span, rhs.m_span);
@ -266,6 +269,75 @@ private:
ptrdiff_t index_;
};
template <class Span>
class span_iterator : public const_span_iterator<Span>
{
using base_type = const_span_iterator<Span>;
public:
using iterator_category = std::random_access_iterator_tag;
using value_type = typename Span::element_type;
using difference_type = std::ptrdiff_t;
using pointer = value_type*;
using reference = value_type&;
constexpr span_iterator() : base_type() {}
constexpr span_iterator(const Span* span, typename Span::index_type index) : base_type(span, index) {}
constexpr reference operator*() const { return reinterpret_cast<reference>(base_type::operator*()); }
constexpr pointer operator->() const { return reinterpret_cast<pointer>(base_type::operator->()); }
constexpr span_iterator& operator++() noexcept { base_type::operator++(); return *this; }
constexpr span_iterator operator++(int) noexcept { return base_type::operator++(1); }
constexpr span_iterator& operator--() noexcept { base_type::operator--(); return *this; }
constexpr span_iterator operator--(int) noexcept { return base_type::operator--(1); }
constexpr span_iterator operator+(difference_type n) const noexcept { return base_type::operator+(n); }
constexpr span_iterator& operator+=(difference_type n) noexcept { return base_type::operator+=(n); }
constexpr span_iterator operator-(difference_type n) const noexcept { return base_type::operator-(n); }
constexpr span_iterator& operator-=(difference_type n) noexcept { return base_type::operator-=(n); }
constexpr difference_type operator-(const span_iterator& rhs) const noexcept { return base_type::operator-(rhs); }
constexpr reference operator[](difference_type n) const noexcept { return *(*this + n); }
constexpr bool operator==(const span_iterator& rhs) const noexcept { return base_type::operator==(rhs); }
constexpr bool operator!=(const span_iterator& rhs) const noexcept { return !(*this == rhs); }
constexpr bool operator<(const span_iterator& rhs) const noexcept { return base_type::operator<(rhs); }
constexpr bool operator<=(const span_iterator& rhs) const noexcept { return !(rhs < *this); }
constexpr bool operator>(const span_iterator& rhs) const noexcept { return rhs < *this; }
constexpr bool operator>=(const span_iterator& rhs) const noexcept { return !(rhs > *this); }
void swap(span_iterator& rhs) noexcept { base_type::swap(rhs); }
};
template <typename Span>
constexpr const_span_iterator<Span> operator+(typename const_span_iterator<Span>::difference_type n,
const const_span_iterator<Span>& rhs) noexcept
{
return rhs + n;
}
template <typename Span>
constexpr const_span_iterator<Span> operator-(typename const_span_iterator<Span>::difference_type n,
const const_span_iterator<Span>& rhs) noexcept
{
return rhs - n;
}
template <typename Span>
constexpr span_iterator<Span> operator+(typename span_iterator<Span>::difference_type n,
const span_iterator<Span>& rhs) noexcept
@ -294,7 +366,9 @@ public:
using reference = element_type&;
using iterator = details::span_iterator<span<ElementType, Extent>>;
using const_iterator = details::span_iterator<span>;
using reverse_iterator = std::reverse_iterator<iterator>;
using const_reverse_iterator = std::reverse_iterator<const_iterator>;
constexpr static const index_type extent = Extent;

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@ -21,7 +21,7 @@
#include "gsl_assert.h"
#include "gsl_util.h"
#include "multi_span.h"
#include "span.h"
#include <cstring>
#include <string>
@ -72,19 +72,19 @@ namespace gsl
// (sometimes needlessly) break existing programs when introduced.
//
template<typename CharT, std::ptrdiff_t Extent = dynamic_range>
template<typename CharT, std::ptrdiff_t Extent = dynamic_extent>
using basic_zstring = CharT*;
template<std::ptrdiff_t Extent = dynamic_range>
template<std::ptrdiff_t Extent = dynamic_extent>
using czstring = basic_zstring<const char, Extent>;
template<std::ptrdiff_t Extent = dynamic_range>
template<std::ptrdiff_t Extent = dynamic_extent>
using cwzstring = basic_zstring<const wchar_t, Extent>;
template<std::ptrdiff_t Extent = dynamic_range>
template<std::ptrdiff_t Extent = dynamic_extent>
using zstring = basic_zstring<char, Extent>;
template<std::ptrdiff_t Extent = dynamic_range>
template<std::ptrdiff_t Extent = dynamic_extent>
using wzstring = basic_zstring<wchar_t, Extent>;
//
@ -96,7 +96,7 @@ using wzstring = basic_zstring<wchar_t, Extent>;
// Will fail-fast if sentinel cannot be found before max elements are examined.
//
template<typename T, const T Sentinel>
multi_span<T, dynamic_range> ensure_sentinel(T* seq, std::ptrdiff_t max = PTRDIFF_MAX)
span<T, dynamic_extent> ensure_sentinel(T* seq, std::ptrdiff_t max = PTRDIFF_MAX)
{
auto cur = seq;
while ((cur - seq) < max && *cur != Sentinel) ++cur;
@ -111,34 +111,34 @@ multi_span<T, dynamic_range> ensure_sentinel(T* seq, std::ptrdiff_t max = PTRDIF
// the limit of size_type.
//
template<typename T>
inline multi_span<T, dynamic_range> ensure_z(T* const & sz, std::ptrdiff_t max = PTRDIFF_MAX)
inline span<T, dynamic_extent> ensure_z(T* const & sz, std::ptrdiff_t max = PTRDIFF_MAX)
{
return ensure_sentinel<T, 0>(sz, max);
}
// TODO (neilmac) there is probably a better template-magic way to get the const and non-const overloads to share an implementation
inline multi_span<char, dynamic_range> ensure_z(char* const& sz, std::ptrdiff_t max)
inline span<char, dynamic_extent> ensure_z(char* const& sz, std::ptrdiff_t max)
{
auto len = strnlen(sz, narrow_cast<size_t>(max));
Ensures(sz[len] == 0);
return{ sz, static_cast<std::ptrdiff_t>(len) };
}
inline multi_span<const char, dynamic_range> ensure_z(const char* const& sz, std::ptrdiff_t max)
inline span<const char, dynamic_extent> ensure_z(const char* const& sz, std::ptrdiff_t max)
{
auto len = strnlen(sz, narrow_cast<size_t>(max));
Ensures(sz[len] == 0);
return{ sz, static_cast<std::ptrdiff_t>(len) };
}
inline multi_span<wchar_t, dynamic_range> ensure_z(wchar_t* const& sz, std::ptrdiff_t max)
inline span<wchar_t, dynamic_extent> ensure_z(wchar_t* const& sz, std::ptrdiff_t max)
{
auto len = wcsnlen(sz, narrow_cast<size_t>(max));
Ensures(sz[len] == 0);
return{ sz, static_cast<std::ptrdiff_t>(len) };
}
inline multi_span<const wchar_t, dynamic_range> ensure_z(const wchar_t* const& sz, std::ptrdiff_t max)
inline span<const wchar_t, dynamic_extent> ensure_z(const wchar_t* const& sz, std::ptrdiff_t max)
{
auto len = wcsnlen(sz, narrow_cast<size_t>(max));
Ensures(sz[len] == 0);
@ -146,10 +146,10 @@ inline multi_span<const wchar_t, dynamic_range> ensure_z(const wchar_t* const& s
}
template<typename T, size_t N>
multi_span<T, dynamic_range> ensure_z(T(&sz)[N]) { return ensure_z(&sz[0], static_cast<std::ptrdiff_t>(N)); }
span<T, dynamic_extent> ensure_z(T(&sz)[N]) { return ensure_z(&sz[0], static_cast<std::ptrdiff_t>(N)); }
template<class Cont>
multi_span<typename std::remove_pointer<typename Cont::pointer>::type, dynamic_range> ensure_z(Cont& cont)
span<typename std::remove_pointer<typename Cont::pointer>::type, dynamic_extent> ensure_z(Cont& cont)
{
return ensure_z(cont.data(), static_cast<std::ptrdiff_t>(cont.length()));
}
@ -216,9 +216,7 @@ namespace details
//
// string_span and relatives
//
// Note that Extent is always single-dimension only
//
template <typename CharT, std::ptrdiff_t Extent = dynamic_range>
template <typename CharT, std::ptrdiff_t Extent = dynamic_extent>
class basic_string_span
{
public:
@ -227,8 +225,7 @@ public:
using pointer = std::add_pointer_t<value_type>;
using reference = std::add_lvalue_reference_t<value_type>;
using const_reference = std::add_lvalue_reference_t<const_value_type>;
using bounds_type = static_bounds<Extent>;
using impl_type = multi_span<value_type, Extent>;
using impl_type = span<value_type, Extent>;
using size_type = ptrdiff_t;
using iterator = typename impl_type::iterator;
@ -296,52 +293,52 @@ public:
{}
// from containers. Containers must have .size() and .data() function signatures
template <typename Cont, typename DataType = typename Cont::value_type,
typename Dummy = std::enable_if_t<!details::is_multi_span<Cont>::value
&& !details::is_basic_string_span<Cont>::value
&& !(!std::is_const<value_type>::value && std::is_const<Cont>::value) // no converting const containers to non-const span
&& std::is_convertible<DataType*, value_type*>::value
&& std::is_same<std::decay_t<decltype(std::declval<Cont>().size(), *std::declval<Cont>().data())>, DataType>::value>
template <typename Cont,
typename = std::enable_if_t<
!details::is_basic_string_span<Cont>::value
&& !details::is_span<Cont>::value
&& std::is_convertible<Cont::pointer, pointer>::value
&& std::is_convertible<Cont::pointer, decltype(std::declval<Cont>().data())>::value>
>
constexpr basic_string_span(Cont& cont)
: span_(cont.data(), cont.size())
{}
constexpr basic_string_span(Cont& cont) : span_(cont.data(), cont.size()) {}
// disallow creation from temporary containers and strings
template <typename Cont, typename DataType = typename Cont::value_type,
typename Dummy = std::enable_if_t<!details::is_multi_span<Cont>::value
&& !details::is_basic_string_span<Cont>::value
&& std::is_convertible<DataType*, value_type*>::value
&& std::is_same<std::decay_t<decltype(std::declval<Cont>().size(), *std::declval<Cont>().data())>, DataType>::value>
template <typename Cont,
typename = std::enable_if_t<
!details::is_basic_string_span<Cont>::value
&& !details::is_span<Cont>::value
&& std::is_convertible<Cont::pointer, pointer>::value
&& std::is_convertible<Cont::pointer, decltype(std::declval<Cont>().data())>::value>
>
basic_string_span(Cont&& cont) = delete;
constexpr basic_string_span(const Cont& cont) : span_(cont.data(), cont.size()) {}
#ifndef GSL_MSVC_HAS_SFINAE_SUBSTITUTION_ICE
// from span
template <typename OtherValueType, std::ptrdiff_t OtherExtent,
typename Dummy = std::enable_if_t<
std::is_convertible<OtherValueType*, value_type*>::value
&& std::is_convertible<static_bounds<OtherExtent>, bounds_type>::value>
std::is_convertible<span<OtherValueType, OtherExtent>, impl_type>::value
>
constexpr basic_string_span(multi_span<OtherValueType, OtherExtent> other) noexcept
>
constexpr basic_string_span(span<OtherValueType, OtherExtent> other) noexcept
: span_(other)
{}
#else
// from span
constexpr basic_string_span(multi_span<value_type, Extent> other) noexcept
constexpr basic_string_span(span<value_type, Extent> other) noexcept
: span_(other)
{}
template <typename Dummy = std::enable_if_t<!std::is_same<std::remove_const_t<value_type>, value_type>::value>>
constexpr basic_string_span(multi_span<std::remove_const_t<value_type>, Extent> other) noexcept
template <typename = std::enable_if_t<!std::is_same<std::remove_const_t<value_type>, value_type>::value>>
constexpr basic_string_span(span<std::remove_const_t<value_type>, Extent> other) noexcept
: span_(other)
{}
#endif
// from string_span
template <typename OtherValueType, std::ptrdiff_t OtherExtent,
typename OtherBounds = static_bounds<OtherExtent>,
typename Dummy = std::enable_if_t<std::is_convertible<OtherValueType*, value_type*>::value && std::is_convertible<OtherBounds, bounds_type>::value>
typename = std::enable_if_t<
std::is_convertible<basic_string_span<OtherValueType, OtherExtent>::impl_type, impl_type>::value
>
>
constexpr basic_string_span(basic_string_span<OtherValueType, OtherExtent> other) noexcept
: span_(other.data(), other.length())
@ -359,7 +356,7 @@ public:
return{ span_.template first<Count>() };
}
constexpr basic_string_span<value_type, dynamic_range> first(size_type count) const noexcept
constexpr basic_string_span<value_type, dynamic_extent> first(size_type count) const noexcept
{
return{ span_.first(count) };
}
@ -371,7 +368,7 @@ public:
return{ span_.template last<Count>() };
}
constexpr basic_string_span<value_type, dynamic_range> last(size_type count) const noexcept
constexpr basic_string_span<value_type, dynamic_extent> last(size_type count) const noexcept
{
return{ span_.last(count) };
}
@ -383,7 +380,7 @@ public:
return{ span_.template subspan<Offset, Count>() };
}
constexpr basic_string_span<value_type, dynamic_range> subspan(size_type offset, size_type count = dynamic_range) const noexcept
constexpr basic_string_span<value_type, dynamic_extent> subspan(size_type offset, size_type count = dynamic_extent) const noexcept
{
return{ span_.subspan(offset, count) };
}
@ -478,16 +475,16 @@ private:
impl_type span_;
};
template<std::ptrdiff_t Extent = dynamic_range>
template<std::ptrdiff_t Extent = dynamic_extent>
using string_span = basic_string_span<char, Extent>;
template<std::ptrdiff_t Extent = dynamic_range>
template<std::ptrdiff_t Extent = dynamic_extent>
using cstring_span = basic_string_span<const char, Extent>;
template<std::ptrdiff_t Extent = dynamic_range>
template<std::ptrdiff_t Extent = dynamic_extent>
using wstring_span = basic_string_span<wchar_t, Extent>;
template<std::ptrdiff_t Extent = dynamic_range>
template<std::ptrdiff_t Extent = dynamic_extent>
using cwstring_span = basic_string_span<const wchar_t, Extent>;
//
@ -527,7 +524,7 @@ inline std::wstring to_string(wstring_span<> view)
// zero-terminated string span, used to convert
// zero-terminated spans to legacy strings
template<typename CharT, std::ptrdiff_t Extent = dynamic_range>
template<typename CharT, std::ptrdiff_t Extent = dynamic_extent>
class basic_zstring_span
{
public:
@ -540,14 +537,14 @@ public:
using zstring_type = basic_zstring<value_type, Extent>;
using const_zstring_type = basic_zstring<const_value_type, Extent>;
using impl_type = multi_span<value_type, Extent>;
using impl_type = span<value_type, Extent>;
using string_span_type = basic_string_span<value_type, Extent>;
constexpr basic_zstring_span(impl_type multi_span) noexcept
: span_(multi_span)
constexpr basic_zstring_span(impl_type s) noexcept
: span_(s)
{
// expects a zero-terminated span
Expects(multi_span[multi_span.size() - 1] == '\0');
Expects(s[s.size() - 1] == '\0');
}
// copy
@ -588,22 +585,22 @@ private:
impl_type span_;
};
template <std::ptrdiff_t Max = dynamic_range>
template <std::ptrdiff_t Max = dynamic_extent>
using zstring_span = basic_zstring_span<char, Max>;
template <std::ptrdiff_t Max = dynamic_range>
template <std::ptrdiff_t Max = dynamic_extent>
using wzstring_span = basic_zstring_span<wchar_t, Max>;
template <std::ptrdiff_t Max = dynamic_range>
template <std::ptrdiff_t Max = dynamic_extent>
using czstring_span = basic_zstring_span<const char, Max>;
template <std::ptrdiff_t Max = dynamic_range>
template <std::ptrdiff_t Max = dynamic_extent>
using cwzstring_span = basic_zstring_span<const wchar_t, Max>;
} // namespace GSL
// operator ==
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename = std::enable_if_t<
std::is_convertible<T, gsl::basic_string_span<std::add_const_t<CharT>, Extent>>::value>
>
@ -617,7 +614,7 @@ bool operator==(gsl::basic_string_span<CharT, Extent> one, const T& other) noexc
#endif
}
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename Dummy = std::enable_if_t<
std::is_convertible<T, gsl::basic_string_span<std::add_const_t<CharT>, Extent>>::value
&& !gsl::details::is_basic_string_span<T>::value>
@ -637,10 +634,10 @@ bool operator==(const T& one, gsl::basic_string_span<CharT, Extent> other) noexc
// VS treats temp and const containers as convertible to basic_string_span,
// so the cases below are already covered by the previous operators
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename DataType = typename T::value_type,
typename Dummy = std::enable_if_t<
!gsl::details::is_multi_span<T>::value
!gsl::details::is_span<T>::value
&& !gsl::details::is_basic_string_span<T>::value
&& std::is_convertible<DataType*, CharT*>::value
&& std::is_same<std::decay_t<decltype(std::declval<T>().size(), *std::declval<T>().data())>, DataType>::value>
@ -651,10 +648,10 @@ bool operator==(gsl::basic_string_span<CharT, Extent> one, const T& other) noexc
return std::equal(one.begin(), one.end(), tmp.begin(), tmp.end());
}
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename DataType = typename T::value_type,
typename Dummy = std::enable_if_t<
!gsl::details::is_multi_span<T>::value
!gsl::details::is_span<T>::value
&& !gsl::details::is_basic_string_span<T>::value
&& std::is_convertible<DataType*, CharT*>::value
&& std::is_same<std::decay_t<decltype(std::declval<T>().size(), *std::declval<T>().data())>, DataType>::value>
@ -667,7 +664,7 @@ bool operator==(const T& one, gsl::basic_string_span<CharT, Extent> other) noexc
#endif
// operator !=
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename = std::enable_if_t<
std::is_convertible<T, gsl::basic_string_span<std::add_const_t<CharT>, Extent>>::value>
>
@ -676,7 +673,7 @@ bool operator!=(gsl::basic_string_span<CharT, Extent> one, const T& other) noexc
return !(one == other);
}
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename Dummy = std::enable_if_t<
std::is_convertible<T, gsl::basic_string_span<std::add_const_t<CharT>, Extent>>::value
&& !gsl::details::is_basic_string_span<T>::value>
@ -691,10 +688,10 @@ bool operator!=(const T& one, gsl::basic_string_span<CharT, Extent> other) noexc
// VS treats temp and const containers as convertible to basic_string_span,
// so the cases below are already covered by the previous operators
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename DataType = typename T::value_type,
typename Dummy = std::enable_if_t<
!gsl::details::is_multi_span<T>::value
!gsl::details::is_span<T>::value
&& !gsl::details::is_basic_string_span<T>::value
&& std::is_convertible<DataType*, CharT*>::value
&& std::is_same<std::decay_t<decltype(std::declval<T>().size(), *std::declval<T>().data())>, DataType>::value>
@ -704,10 +701,10 @@ bool operator!=(gsl::basic_string_span<CharT, Extent> one, const T& other) noexc
return !(one == other);
}
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename DataType = typename T::value_type,
typename Dummy = std::enable_if_t<
!gsl::details::is_multi_span<T>::value
!gsl::details::is_span<T>::value
&& !gsl::details::is_basic_string_span<T>::value
&& std::is_convertible<DataType*, CharT*>::value
&& std::is_same<std::decay_t<decltype(std::declval<T>().size(), *std::declval<T>().data())>, DataType>::value>
@ -719,7 +716,7 @@ bool operator!=(const T& one, gsl::basic_string_span<CharT, Extent> other) noexc
#endif
// operator<
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename = std::enable_if_t<
std::is_convertible<T, gsl::basic_string_span<std::add_const_t<CharT>, Extent>>::value>
>
@ -729,7 +726,7 @@ bool operator<(gsl::basic_string_span<CharT, Extent> one, const T& other) noexce
return std::lexicographical_compare(one.begin(), one.end(), tmp.begin(), tmp.end());
}
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename Dummy = std::enable_if_t<
std::is_convertible<T, gsl::basic_string_span<std::add_const_t<CharT>, Extent>>::value
&& !gsl::details::is_basic_string_span<T>::value>
@ -745,10 +742,10 @@ bool operator<(const T& one, gsl::basic_string_span<CharT, Extent> other) noexce
// VS treats temp and const containers as convertible to basic_string_span,
// so the cases below are already covered by the previous operators
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename DataType = typename T::value_type,
typename Dummy = std::enable_if_t<
!gsl::details::is_multi_span<T>::value
!gsl::details::is_span<T>::value
&& !gsl::details::is_basic_string_span<T>::value
&& std::is_convertible<DataType*, CharT*>::value
&& std::is_same<std::decay_t<decltype(std::declval<T>().size(), *std::declval<T>().data())>, DataType>::value>
@ -759,10 +756,10 @@ bool operator<(gsl::basic_string_span<CharT, Extent> one, const T& other) noexce
return std::lexicographical_compare(one.begin(), one.end(), tmp.begin(), tmp.end());
}
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename DataType = typename T::value_type,
typename Dummy = std::enable_if_t<
!gsl::details::is_multi_span<T>::value
!gsl::details::is_span<T>::value
&& !gsl::details::is_basic_string_span<T>::value
&& std::is_convertible<DataType*, CharT*>::value
&& std::is_same<std::decay_t<decltype(std::declval<T>().size(), *std::declval<T>().data())>, DataType>::value>
@ -775,7 +772,7 @@ bool operator<(const T& one, gsl::basic_string_span<CharT, Extent> other) noexce
#endif
// operator <=
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename = std::enable_if_t<
std::is_convertible<T, gsl::basic_string_span<std::add_const_t<CharT>, Extent>>::value>
>
@ -784,7 +781,7 @@ bool operator<=(gsl::basic_string_span<CharT, Extent> one, const T& other) noexc
return !(other < one);
}
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename Dummy = std::enable_if_t<
std::is_convertible<T, gsl::basic_string_span<std::add_const_t<CharT>, Extent>>::value
&& !gsl::details::is_basic_string_span<T>::value>
@ -799,10 +796,10 @@ bool operator<=(const T& one, gsl::basic_string_span<CharT, Extent> other) noexc
// VS treats temp and const containers as convertible to basic_string_span,
// so the cases below are already covered by the previous operators
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename DataType = typename T::value_type,
typename Dummy = std::enable_if_t<
!gsl::details::is_multi_span<T>::value
!gsl::details::is_span<T>::value
&& !gsl::details::is_basic_string_span<T>::value
&& std::is_convertible<DataType*, CharT*>::value
&& std::is_same<std::decay_t<decltype(std::declval<T>().size(), *std::declval<T>().data())>, DataType>::value>
@ -812,10 +809,10 @@ bool operator<=(gsl::basic_string_span<CharT, Extent> one, const T& other) noexc
return !(other < one);
}
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename DataType = typename T::value_type,
typename Dummy = std::enable_if_t<
!gsl::details::is_multi_span<T>::value
!gsl::details::is_span<T>::value
&& !gsl::details::is_basic_string_span<T>::value
&& std::is_convertible<DataType*, CharT*>::value
&& std::is_same<std::decay_t<decltype(std::declval<T>().size(), *std::declval<T>().data())>, DataType>::value>
@ -827,7 +824,7 @@ bool operator<=(const T& one, gsl::basic_string_span<CharT, Extent> other) noexc
#endif
// operator>
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename = std::enable_if_t<
std::is_convertible<T, gsl::basic_string_span<std::add_const_t<CharT>, Extent>>::value>
>
@ -836,7 +833,7 @@ bool operator>(gsl::basic_string_span<CharT, Extent> one, const T& other) noexce
return other < one;
}
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename Dummy = std::enable_if_t<
std::is_convertible<T, gsl::basic_string_span<std::add_const_t<CharT>, Extent>>::value
&& !gsl::details::is_basic_string_span<T>::value>
@ -851,10 +848,10 @@ bool operator>(const T& one, gsl::basic_string_span<CharT, Extent> other) noexce
// VS treats temp and const containers as convertible to basic_string_span,
// so the cases below are already covered by the previous operators
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename DataType = typename T::value_type,
typename Dummy = std::enable_if_t<
!gsl::details::is_multi_span<T>::value
!gsl::details::is_span<T>::value
&& !gsl::details::is_basic_string_span<T>::value
&& std::is_convertible<DataType*, CharT*>::value
&& std::is_same<std::decay_t<decltype(std::declval<T>().size(), *std::declval<T>().data())>, DataType>::value>
@ -864,10 +861,10 @@ bool operator>(gsl::basic_string_span<CharT, Extent> one, const T& other) noexce
return other < one;
}
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename DataType = typename T::value_type,
typename Dummy = std::enable_if_t<
!gsl::details::is_multi_span<T>::value
!gsl::details::is_span<T>::value
&& !gsl::details::is_basic_string_span<T>::value
&& std::is_convertible<DataType*, CharT*>::value
&& std::is_same<std::decay_t<decltype(std::declval<T>().size(), *std::declval<T>().data())>, DataType>::value>
@ -879,7 +876,7 @@ bool operator>(const T& one, gsl::basic_string_span<CharT, Extent> other) noexce
#endif
// operator >=
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename = std::enable_if_t<
std::is_convertible<T, gsl::basic_string_span<std::add_const_t<CharT>, Extent>>::value>
>
@ -888,7 +885,7 @@ bool operator>=(gsl::basic_string_span<CharT, Extent> one, const T& other) noexc
return !(one < other);
}
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename Dummy = std::enable_if_t<
std::is_convertible<T, gsl::basic_string_span<std::add_const_t<CharT>, Extent>>::value
&& !gsl::details::is_basic_string_span<T>::value>
@ -903,10 +900,10 @@ bool operator>=(const T& one, gsl::basic_string_span<CharT, Extent> other) noexc
// VS treats temp and const containers as convertible to basic_string_span,
// so the cases below are already covered by the previous operators
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename DataType = typename T::value_type,
typename Dummy = std::enable_if_t<
!gsl::details::is_multi_span<T>::value
!gsl::details::is_span<T>::value
&& !gsl::details::is_basic_string_span<T>::value
&& std::is_convertible<DataType*, CharT*>::value
&& std::is_same<std::decay_t<decltype(std::declval<T>().size(), *std::declval<T>().data())>, DataType>::value>
@ -916,10 +913,10 @@ bool operator>=(gsl::basic_string_span<CharT, Extent> one, const T& other) noexc
return !(one < other);
}
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_range, typename T,
template <typename CharT, std::ptrdiff_t Extent = gsl::dynamic_extent, typename T,
typename DataType = typename T::value_type,
typename Dummy = std::enable_if_t<
!gsl::details::is_multi_span<T>::value
!gsl::details::is_span<T>::value
&& !gsl::details::is_basic_string_span<T>::value
&& std::is_convertible<DataType*, CharT*>::value
&& std::is_same<std::decay_t<decltype(std::declval<T>().size(), *std::declval<T>().data())>, DataType>::value>

View File

@ -15,7 +15,7 @@
///////////////////////////////////////////////////////////////////////////////
#include <UnitTest++/UnitTest++.h>
#include <byte.h>
#include <gsl_byte.h>
#include <iostream>
#include <list>

View File

@ -142,7 +142,7 @@ SUITE(string_span_tests)
const char* ptr = "Hello";
const std::string str = "Hello";
const std::vector<char> vec = { 'H', 'e', 'l', 'l', 'o' };
gsl::multi_span<const char> sp = ensure_z("Hello");
gsl::span<const char> sp = ensure_z("Hello");
// comparison to literal
CHECK(span == cstring_span<>("Hello"));
@ -182,7 +182,7 @@ SUITE(string_span_tests)
char* ptr = ar;
std::string str = "Hello";
std::vector<char> vec = { 'H', 'e', 'l', 'l', 'o' };
gsl::multi_span<char> sp = ensure_z(ar1);
gsl::span<char> sp = ensure_z(ar1);
// comparison to static array with no null termination
CHECK(span == string_span<>(ar));
@ -216,7 +216,7 @@ SUITE(string_span_tests)
const char ar2[10] = "Hello";
const std::string str = "Hello";
const std::vector<char> vec = { 'H', 'e', 'l', 'l', 'o' };
gsl::multi_span<const char> sp = ensure_z("Hello");
gsl::span<const char> sp = ensure_z("Hello");
cstring_span<> span = "Hello";
@ -253,7 +253,7 @@ SUITE(string_span_tests)
char* _ptr = _ar;
std::string _str = "Hello";
std::vector<char> _vec = { 'H', 'e', 'l', 'l', 'o' };
gsl::multi_span<char> _sp{ _ar, 5 };
gsl::span<char> _sp{ _ar, 5 };
CHECK(span == _ar);
CHECK(span == _ar1);
@ -447,7 +447,7 @@ SUITE(string_span_tests)
// from span of a final extent
{
multi_span<const char, 6> sp = "Hello";
span<const char, 6> sp = "Hello";
cstring_span<> span = sp;
CHECK(span.length() == 6);
}
@ -455,7 +455,7 @@ SUITE(string_span_tests)
// from const span of a final extent to non-const string_span
#ifdef CONFIRM_COMPILATION_ERRORS
{
multi_span<const char, 6> sp = "Hello";
span<const char, 6> sp = "Hello";
string_span<> span = sp;
CHECK(span.length() == 6);
}
@ -568,7 +568,7 @@ SUITE(string_span_tests)
// from const span
{
std::vector<char> vec = { 'H', 'e', 'l', 'l', 'o' };
const multi_span<const char> inner = vec;
const span<const char> inner = vec;
cstring_span<> span = inner;
CHECK(span.length() == 5);
}
@ -576,7 +576,7 @@ SUITE(string_span_tests)
// from non-const span
{
std::vector<char> vec = { 'H', 'e', 'l', 'l', 'o' };
multi_span<char> inner = vec;
span<char> inner = vec;
cstring_span<> span = inner;
CHECK(span.length() == 5);
}
@ -675,7 +675,7 @@ SUITE(string_span_tests)
{
#ifdef CONFIRM_COMPILATION_ERRORS
std::vector<char> vec = { 'H', 'e', 'l', 'l', 'o' };
const multi_span<const char> inner = vec;
const span<const char> inner = vec;
string_span<> span = inner;
CHECK(span.length() == 5);
#endif
@ -684,7 +684,7 @@ SUITE(string_span_tests)
// from non-const span
{
std::vector<char> vec = { 'H', 'e', 'l', 'l', 'o' };
multi_span<char> inner = vec;
span<char> inner = vec;
string_span<> span = inner;
CHECK(span.length() == 5);
}
@ -693,7 +693,7 @@ SUITE(string_span_tests)
{
#ifdef CONFIRM_COMPILATION_ERRORS
const std::vector<char> vec = { 'H', 'e', 'l', 'l', 'o' };
const multi_span<char> inner = vec;
const span<char> inner = vec;
string_span<> span = inner;
CHECK(span.length() == 5);
#endif
@ -746,7 +746,7 @@ SUITE(string_span_tests)
T create() { return T{}; }
template <class T>
void use(basic_string_span<T, gsl::dynamic_range> s) {}
void use(basic_string_span<T, gsl::dynamic_extent> s) {}
TEST(MoveConstructors)
{
@ -769,12 +769,12 @@ SUITE(string_span_tests)
// move span
{
multi_span<const char> span = ensure_z("Hello");
span<const char> span = ensure_z("Hello");
cstring_span<> span1 = std::move(span);
CHECK(span1.length() == 5);
}
{
multi_span<const char> span = ensure_z("Hello");
span<const char> span = ensure_z("Hello");
cstring_span<> span2 = move_wrapper(std::move(span));
CHECK(span2.length() == 5);
}