#include <cuda.h>
#include <stdio.h>

__global__ void add( int a, int b, int* c )
{
	*c = a + b;

	return;
}

int main(int argc, char** argv)
{
	int c;
	int* dev_c;

	cudaMalloc((void**)&dev_c, sizeof(int) );

	add<<<1,1>>>(1, 2, dev_c);

	cudaMemcpy(&c, dev_c, sizeof(int), cudaMemcpyDeviceToHost);

	printf("a + b = %d\n", c);

	cudaFree(dev_c);

	return 0;
}