Algorithm to convert a multi-dimensional array to a one-dimensional array

Question

It\'s easy enough to convert a 2-dimensional array to a single-dimensional array but how can I convert a multi-dimensional array of more than 2 dimensions to a one-dimension

Answer 1

m0,m1,.. are dimensions
A(i,j,k,...) -> A0[i + j*m0 + k*m0*m1 + ...]

and useful C trick:

double *A;
size_t m;
#define A(i,j) A[(i) + (j)*m];