Casey Carter ebab8cab7f gsl::at clean-up: (#479) ...

* initializer_list overload returns by value to avoid lifetime issues

* generic overload uses expression SFINAE to work with any type that has member size() and operator[], which notably includes const/non-const vector and array.

* Add test coverage for const objects, rvalue initializer_lists, and constexpr usage.

Fixes #357.

2017-04-03 22:43:43 -07:00

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gsl

gsl::at clean-up: (#479)

2017-04-03 22:43:43 -07:00