Initialize FixedVector's member in its null constructor to eliminate a Wall warning.
Initialize FixedVector's member in its null constructor to eliminate a Wall warning.

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