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fixed noexept warnings (#632)

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* fixed noexept warnings

- Removed conditional compilation for throwing version of GSL
  vs fail_fast because we don't want users of the code to see
  differences in the span interface dependent on error mechanism
  chosen
- Removed noexcept from functions that may fail at runtime
- Fixed CppCoreCheck warnings related to missing and incorrect
  noexcept
- do not warn on unnown attributes for GCC and Clang

* remove suppress that does not compiler for clang and gcc
This commit is contained in:
Anna Gringauze 2018-03-03 19:12:23 -08:00 committed by Neil MacIntosh
parent ed3693fd2e
commit cbd64c9ff6
1 changed files with 18 additions and 25 deletions
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43
include/gsl/span
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@ -49,11 +49,7 @@
#endif // _MSC_VER < 1910
#endif // _MSC_VER
#ifdef GSL_THROW_ON_CONTRACT_VIOLATION
#define GSL_NOEXCEPT /*noexcept*/
#else
#define GSL_NOEXCEPT noexcept
#endif // GSL_THROW_ON_CONTRACT_VIOLATION
namespace gsl
{
@ -127,9 +123,7 @@ namespace details
constexpr span_iterator(const Span* span, typename Span::index_type idx) GSL_NOEXCEPT
: span_(span), index_(idx)
{
Expects(span == nullptr || (0 <= index_ && index_ <= span_->size()));
}
{}
friend span_iterator<Span, true>;
template<bool B, std::enable_if_t<!B && IsConst>* = nullptr>
@ -138,74 +132,74 @@ namespace details
{
}
constexpr reference operator*() const GSL_NOEXCEPT
constexpr reference operator*() const
{
Expects(index_ != span_->size());
return *(span_->data() + index_);
}
constexpr pointer operator->() const GSL_NOEXCEPT
constexpr pointer operator->() const
{
Expects(index_ != span_->size());
return span_->data() + index_;
}
constexpr span_iterator& operator++() GSL_NOEXCEPT
constexpr span_iterator& operator++()
{
Expects(0 <= index_ && index_ != span_->size());
++index_;
return *this;
}
constexpr span_iterator operator++(int) GSL_NOEXCEPT
constexpr span_iterator operator++(int)
{
auto ret = *this;
++(*this);
return ret;
}
constexpr span_iterator& operator--() GSL_NOEXCEPT
constexpr span_iterator& operator--()
{
Expects(index_ != 0 && index_ <= span_->size());
--index_;
return *this;
}
constexpr span_iterator operator--(int) GSL_NOEXCEPT
constexpr span_iterator operator--(int)
{
auto ret = *this;
--(*this);
return ret;
}
constexpr span_iterator operator+(difference_type n) const GSL_NOEXCEPT
constexpr span_iterator operator+(difference_type n) const
{
auto ret = *this;
return ret += n;
}
constexpr span_iterator& operator+=(difference_type n) GSL_NOEXCEPT
constexpr span_iterator& operator+=(difference_type n)
{
Expects((index_ + n) >= 0 && (index_ + n) <= span_->size());
index_ += n;
return *this;
}
constexpr span_iterator operator-(difference_type n) const GSL_NOEXCEPT
constexpr span_iterator operator-(difference_type n) const
{
auto ret = *this;
return ret -= n;
}
constexpr span_iterator& operator-=(difference_type n) GSL_NOEXCEPT { return *this += -n; }
constexpr span_iterator& operator-=(difference_type n) { return *this += -n; }
constexpr difference_type operator-(span_iterator rhs) const GSL_NOEXCEPT
constexpr difference_type operator-(span_iterator rhs) const
{
Expects(span_ == rhs.span_);
return index_ - rhs.index_;
}
constexpr reference operator[](difference_type n) const GSL_NOEXCEPT
constexpr reference operator[](difference_type n) const
{
return *(*this + n);
}
@ -225,7 +219,6 @@ namespace details
constexpr friend bool operator<(span_iterator lhs,
span_iterator rhs) GSL_NOEXCEPT
{
Expects(lhs.span_ == rhs.span_);
return lhs.index_ < rhs.index_;
}
@ -255,7 +248,7 @@ namespace details
template <class Span, bool IsConst>
constexpr span_iterator<Span, IsConst>
operator+(typename span_iterator<Span, IsConst>::difference_type n,
span_iterator<Span, IsConst> rhs) GSL_NOEXCEPT
span_iterator<Span, IsConst> rhs)
{
return rhs + n;
}
@ -263,7 +256,7 @@ namespace details
template <class Span, bool IsConst>
constexpr span_iterator<Span, IsConst>
operator-(typename span_iterator<Span, IsConst>::difference_type n,
span_iterator<Span, IsConst> rhs) GSL_NOEXCEPT
span_iterator<Span, IsConst> rhs)
{
return rhs - n;
}
@ -511,7 +504,7 @@ private:
template <std::ptrdiff_t CallerExtent>
span<element_type, dynamic_extent> make_subspan(index_type offset,
index_type count,
subspan_selector<CallerExtent>) const GSL_NOEXCEPT
subspan_selector<CallerExtent>) const
{
span<element_type, dynamic_extent> tmp(*this);
return tmp.subspan(offset, count);
@ -519,7 +512,7 @@ private:
span<element_type, dynamic_extent> make_subspan(index_type offset,
index_type count,
subspan_selector<dynamic_extent>) const GSL_NOEXCEPT
subspan_selector<dynamic_extent>) const
{
Expects(offset >= 0 && size() - offset >= 0);
if (count == dynamic_extent)
@ -631,7 +624,7 @@ constexpr span<ElementType> make_span(ElementType* firstElem, ElementType* lastE
}
template <class ElementType, std::size_t N>
constexpr span<ElementType, N> make_span(ElementType (&arr)[N])
constexpr span<ElementType, N> make_span(ElementType (&arr)[N]) GSL_NOEXCEPT
{
return span<ElementType, N>(arr);
}