A simple macro for checking errors after CUDA library calls.

cudaCheckError.c

//Macro for checking cuda errors following a cuda launch or api call
#define cudaCheckError() {                                          \
 cudaError_t e=cudaGetLastError();                                 \
 if(e!=cudaSuccess) {                                              \
   printf("Cuda failure %s:%d: '%s'\n",__FILE__,__LINE__,cudaGetErrorString(e));           \
   exit(0); \
 }                                                                 \
}