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

..

gsl

add gsl::index typedef (#620)

2018-02-21 13:33:07 -08:00