#include "SparseMat.h" 
float MultiplySparseRows(struct row_sp * row1, struct row_sp * row2)
{
  int		i1, i2, j1, j2;
  float		z1, z2, product;
	
  /* Move Entries */
  product = 0.0;
  for(i1=0; i1<(*row1).p; i1++)
  {
    z1 = (*row1).vals[i1];
    j1 = (*row1).cols[i1];
    for(i2=0; i2<(*row2).p; i2++)
    {
    if(j1==(*row2).cols[i2])
      {
      z2=(*row2).vals[i2];
      product+=z1*z2;
      }
    }
  }
  
  /* Returning Matrix Structure */
  printf("product = %f \n", product);
  return product;
}