Added support for custom data with png image files

Rakesh Jasti

2017-04-26 c3b9e4453884f9e44761987fce3b9c6a3dae447b

 src/cuda.c

@@ -26,6 +26,7 @@

void check_error(cudaError_t status)
{
    //cudaDeviceSynchronize();
    cudaError_t status2 = cudaGetLastError();
    if (status != cudaSuccess)
    {