Anna Gringauze 5016ce4a4d Dev/annagrin/opt neg branch (#721) ...

* Added c++17 test configurations for clang5.0 and clang6.0

* Added optimization that removes a branch from span::operator[]

* minor beauty fix

* added a better message for the optimization, fixed signed/unsigned warning

* better check fir wrap-around possibility

2018-08-17 11:36:06 -07:00

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gsl

Dev/annagrin/opt neg branch (#721)

2018-08-17 11:36:06 -07:00