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matrix: assert that index values are valid

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Danny Robson 2018-03-13 22:35:05 +11:00
parent 44f8496256
commit 563ffaf894
1 changed files with 14 additions and 2 deletions
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16
matrix.hpp
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@ -74,10 +74,22 @@ namespace util {
// index operators return a pointer into the data array so that
// multidimensional array syntax can be used transparently on this
// type.
constexpr row_t& operator[] (std::size_t idx)& { return values[idx]; }
constexpr const row_t& operator[] (std::size_t idx) const& { return values[idx]; }
constexpr row_t&
operator[] (std::size_t idx)&
{
CHECK_LT (idx, rows);
return values[idx];
}
//---------------------------------------------------------------------
constexpr const row_t&
operator[] (std::size_t idx) const&
{
CHECK_LT (idx, rows);
return values[idx];
}
///////////////////////////////////////////////////////////////////////
constexpr row_t*
data (void)& noexcept
{