Avoid __host__ __device__ warnings.
Avoid __host__ __device__ warnings.

thrust/thrust,thvasilo/thrust,sarvex/thrust,sdalton1/thrust,raygit/thrust,jaredhoberock/thrust,xiongzhanblake/thrust,egaburov/thrust,andrewcorrigan/thrust-multi-permutation-iterator,GrimDerp/thrust,thrust/thrust,xiongzhanblake/thrust_src,zeryx/thrust,thrust/thrust,sdalton1/thrust,dachziegel/thrust,thvasilo/thrust,marksantos/thrust,jaredhoberock/thrust,zhenglaizhang/thrust,dachziegel/thrust,marksantos/thrust,egaburov/thrust,andrewcorrigan/thrust-multi-permutation-iterator,thrust/thrust,jaredhoberock/thrust,zhenglaizhang/thrust,thrust/thrust,jaredhoberock/thrust,thvasilo/thrust,raygit/thrust,sdalton1/thrust,xiongzhanblake/thrust_src,raygit/thrust,Ricardo666666/thrust,xiongzhanblake/thrust,arnabgho/thrust,GrimDerp/thrust,sarvex/thrust,mohamed-ali/thrust,egaburov/thrust,zeryx/thrust,sarvex/thrust,zeryx/thrust,marksantos/thrust,xiongzhanblake/thrust,dachziegel/thrust,mohamed-ali/thrust,zhenglaizhang/thrust,andrewcorrigan/thrust-multi-permutation-iterator,Ricardo666666/thrust,arnabgho/thrust,mohamed-ali/thrust,GrimDerp/thrust,arnabgho/thrust,jaredhoberock/thrust,Ricardo666666/thrust,xiongzhanblake/thrust_src