enable all warnings, fix warnings in code#33

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dmitryikh wants to merge 4 commits into

Commits on Nov 3, 2017

enable all warnings, fix code
dmitry.khominich
committed
compiler independent awy to setup c++ standard, turn on warnings only on gnu/clang
dmitry.khominich
committed
forbid compiler extensions
dmitry.khominich
committed
not -> !
dmitry.khominich
committed