paweldac b3870ca020 add gsl::index typedef (#620) ... * rename index in multi_span to span_index gsl::index is name reserved for different type * add gsl::index typedef cppcoreguidelines referece: ES.107: Don't use unsigned for subscripts, prefer gsl::index https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#Res-subscripts * rename span_index to multi_span_index		2018-02-21 13:33:07 -08:00
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gsl	add gsl::index typedef (#620)	2018-02-21 13:33:07 -08:00