noexcept all of the span iterator stuff

This commit is contained in:
Jordan Maples [MSFT] 2020-01-08 12:34:11 -08:00
parent b33bd4aebe
commit 3bf4106a44

View File

@ -164,67 +164,67 @@ namespace details
return span_->data() + index_;
}
constexpr span_iterator& operator++()
constexpr span_iterator& operator++() noexcept
{
Expects(0 <= index_ && index_ != span_->size());
++index_;
return *this;
}
constexpr span_iterator operator++(int)
constexpr span_iterator operator++(int) noexcept
{
auto ret = *this;
++(*this);
return ret;
}
constexpr span_iterator& operator--()
constexpr span_iterator& operator--() noexcept
{
Expects(index_ != 0 && index_ <= span_->size());
--index_;
return *this;
}
constexpr span_iterator operator--(int)
constexpr span_iterator operator--(int) noexcept
{
auto ret = *this;
--(*this);
return ret;
}
constexpr span_iterator operator+(difference_type n) const
constexpr span_iterator operator+(difference_type n) const noexcept
{
auto ret = *this;
return ret += n;
}
friend constexpr span_iterator operator+(difference_type n, span_iterator const& rhs)
friend constexpr span_iterator operator+(difference_type n, span_iterator const& rhs) noexcept
{
return rhs + n;
}
constexpr span_iterator& operator+=(difference_type n)
constexpr span_iterator& operator+=(difference_type n) noexcept
{
Expects((index_ + n) >= 0 && (index_ + n) <= span_->size());
index_ += n;
return *this;
}
constexpr span_iterator operator-(difference_type n) const
constexpr span_iterator operator-(difference_type n) const noexcept
{
auto ret = *this;
return ret -= n;
}
constexpr span_iterator& operator-=(difference_type n) { return *this += -n; }
constexpr span_iterator& operator-=(difference_type n) noexcept { return *this += -n; }
constexpr difference_type operator-(span_iterator rhs) const
constexpr difference_type operator-(span_iterator rhs) const noexcept
{
Expects(span_ == rhs.span_);
return index_ - rhs.index_;
}
constexpr reference operator[](difference_type n) const { return *(*this + n); }
constexpr reference operator[](difference_type n) const noexcept { return *(*this + n); }
constexpr friend bool operator==(span_iterator lhs, span_iterator rhs) noexcept
{