Convert element ID to Offset in strided array

elementIDToOffset.cpp

// Note: this doesn't work (yet)

// Example program
#include <iostream>
#include <string>

int cuda_getIndexOfElementID(
    const int rank,
    const int * __restrict__ shape,
    const int * __restrict__ strides,
    const int offset,
    const int element_id) {

    int result = offset;
    int reminderOffset = element_id;
    int dimIndex = 0;

    for (int k = rank - 1; k = 0; --k) {
      dimIndex = reminderOffset % shape[k];
      reminderOffset /= shape[k];

      result += dimIndex * strides[k];
    }
}

int main()
{
  int rank = 2;
  int shape[2] = {8, 3};
  int strides[2] = {3,1};
  int offset = 0;
  int element_id = 5;
  int result = cuda_getIndexOfElementID(rank, &shape[0], &strides[0], offset, element_id);
  std::cout << "Result is: " << result;
}