/usr/include/eigen3/Eigen/src/Core/util/ReenableStupidWarnings.h is in libeigen3-dev 3.2.2-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | #ifdef EIGEN_WARNINGS_DISABLED
#undef EIGEN_WARNINGS_DISABLED
#ifndef EIGEN_PERMANENTLY_DISABLE_STUPID_WARNINGS
#ifdef _MSC_VER
#pragma warning( pop )
#elif defined __INTEL_COMPILER
#pragma warning pop
#elif defined __clang__
#pragma clang diagnostic pop
#endif
#endif
#endif // EIGEN_WARNINGS_DISABLED
|