How can I add vector elements in a cuda kernel?

``` #include <cuda.h> #include <cuda_runtime.h> #include <iostream> #include <vector> using namespace std; __global__ void kernel(vector <int> *a,vector <int> *b, vector <int> *c) { int index=threadIdx.x; c[index]=a[index]+b[index]; }; int main () { //Paar constanten initializeren int N=3; vector <int> a (3,1); vector <int> b (3,1); vector <int> c (3,0); int size=N*sizeof(vector <int>); //Device variabelen vector <int> d_a; vector <int> d_b; vector <int> d_c; //<size> bytes device-geheugen vrijmaken op locatie &a cudaMalloc( (void **) &a, size); cudaMalloc ( (void **) &b, size); cudaMalloc ( (void **) &c, size); //Kopieer inputs van &a naar &d_a cudaMemcpy(&d_a,&a,size,cudaMemcpyHostToDevice); cudaMemcpy(&d_b,&b,size,cudaMemcpyHostToDevice); printf( (char *) a[1]); printf( (char *) c[1]); //Voer kernel uit kernel<<<N,1>>>(&d_a,&d_b,&d_c); //Kopieer resultaat terug naar host cudaMemcpy(&c,&d_c,size,cudaMemcpyDeviceToHost); printf( (char *) c[1]); return 0; }; ``` So this is my basic C++ vector addition program, though it won't compile because it doesn't know what to do with the "+" when adding indexes ("no operator "+" matches these operands"). Anyone have an idea why this doesn't work inside the kernel? I think it may have to do with the fact that it's a host function or something like that, though I wouldn't know how to get around that problem. Greetings and thanks in advance.