If we're compiling CUDA with clang, pull isinf/isnan/signbit and isfinite from std namespace where clang (as of r258880) provides device-side wrappers for math functions.
If we're compiling CUDA with clang, pull isinf/isnan/signbit and isfinite
from std namespace where clang (as of r258880) provides device-side
wrappers for math functions.

egaburov/thrust,egaburov/thrust,sdalton1/thrust,sarvex/thrust,sdalton1/thrust,sarvex/thrust,egaburov/thrust,sarvex/thrust,sdalton1/thrust