enable more clang warnings

21 jobs for cpp_check in 55 seconds (queued for 1 minute and 22 seconds)
Status Job ID Name Coverage
  Build
canceled #75934
VS2015
VS2015-32-bit-shared-apps

canceled #75935
VS2015
VS2015-32-bit-shared-no-apps

canceled #75938
VS2015
VS2015-32-bit-static-apps

canceled #75939
VS2015
VS2015-32-bit-static-no-apps

canceled #75932
VS2015
VS2015-64-bit-shared-apps

canceled #75933
VS2015
VS2015-64-bit-shared-no-apps

canceled #75936
VS2015
VS2015-64-bit-static-apps

canceled #75937
VS2015
VS2015-64-bit-static-no-apps

canceled #75929
VS2017
VS2017-32-bit-shared-no-apps

canceled #75931
VS2017
VS2017-32-bit-static-no-apps

canceled #75926
Qt5101 VS2017
VS2017-64-bit-shared-apps

canceled #75928
VS2017
VS2017-64-bit-shared-no-apps

canceled #75927
Qt5101 VS2017
VS2017-64-bit-static-apps

canceled #75930
VS2017
VS2017-64-bit-static-no-apps

canceled #75920
stretch Linux
clang-c++11

00:00:53

canceled #75922
stretch Linux
clang-c++14

canceled #75925
stretch Linux
cppcheck

canceled #75919
stretch Linux
gcc-c++11

00:00:55

canceled #75921
stretch Linux
gcc-c++14

canceled #75923
Apple
macos-cpp11

canceled #75924
Apple
macos-cpp14