Casey Carter 166ea80f66 Update std::byte detection in gsl_byte for MSVC (#561) ...

* Only check that `_HAS_STD_BYTE` is defined to a non-zero value

2017-10-18 16:35:11 -07:00

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gsl

Update std::byte detection in gsl_byte for MSVC (#561)

2017-10-18 16:35:11 -07:00