Function xmalloc

cpp/4_CUDA_Libraries/simpleCUBLAS_LU/simpleCUBLAS_LU.cpp:86–95

wrapper around malloc clears the allocated memory to 0 terminates the program if malloc fails

// clears the allocated memory to 0
// terminates the program if malloc fails
void *xmalloc(size_t size)
{
    void *ptr = malloc(size);
    if (ptr == NULL) {
        printf("> ERROR: malloc for size %zu failed..\n", size);
        exit(EXIT_FAILURE);
    }
    memset(ptr, 0, size);
    return ptr;
}

// initalize identity matrix
void initIdentityMatrix(DATA_TYPE *mat)