cuda libraries: fix operator precedence issue in macro

nicolasvasilache · ftynse · commit 5c00a16a9330 · 2018-07-24T18:50:05.000+02:00
diff --git a/tc/core/cuda/cuda_libraries.h b/tc/core/cuda/cuda_libraries.h
@@ -240,7 +240,7 @@ inline __device__ void CubReduceAlongXPowerOf2(T* dest, T val) {
 }
 
 #define POWEROF2(X)                             \
-  ((X) & ((X) - 1) == 0)
+  (((X) & ((X) - 1)) == 0)
 
 template <int REDUCTION_SIZE, int BLOCKDIMY, int BLOCKDIMZ, ReductionOp R, typename T>
 inline __device__ void CubReduceAlongX(T* dest, T val) {

Original file line number	Diff line number	Diff line change
`@@ -240,7 +240,7 @@ inline __device__ void CubReduceAlongXPowerOf2(T* dest, T val) {`
`240`	`240`	`}`
`241`	`241`
`242`	`242`	`#define POWEROF2(X) \`
`243`		`- ((X) & ((X) - 1) == 0)`
	`243`	`+ (((X) & ((X) - 1)) == 0)`
`244`	`244`
`245`	`245`	`template <int REDUCTION_SIZE, int BLOCKDIMY, int BLOCKDIMZ, ReductionOp R, typename T>`
`246`	`246`	`inline __device__ void CubReduceAlongX(T* dest, T val) {`