Change Details

`ninja all check-all`

``` mkdir build_ubsan cd build_ubsan cmake -GNinja .. \ -DCMAKE_BUILD_TYPE=Debug \ -DENABLE_SANITIZERS=undefined ninja check ```

`ninja all check-all ``` mkdir build_ubsan cd build_ubsan cmake -GNinja .. \ -DCMAKE_BUILD_TYPE=Debug \ -DENABLE_SANITIZERS=undefined ninja check ```