/usr/include/atlas/atlas_zsyr2NX.h is in libatlas-dev 3.10.2-9.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | #ifndef ATLAS_ZSYR2_H
#define ATLAS_ZSYR2_H
#define ATL_S2NX 120
#endif
|