thrust/version.h
In directory: thrust
Source file: thrust/version.h
Compile-time macros encoding Thrust release version.
   <thrust/version.h> is the only Thrust header that is guaranteed to
   change with every thrust release.
   It is also the only header that does not cause THRUST_HOST_SYSTEM
   and THRUST_DEVICE_SYSTEM to be defined. This way, a user may include
   this header and inspect THRUST_VERSION before programmatically defining
   either of these macros herself.