Question

In my project I’ve these files:

functions.h
functions.cc
main.cc

I’m trying to pass Matrix to functions as pointers in this way:

main.cc

// Size -> const short Size = 10;
int mtr1[Size][Size];
matrix_insert((int *)mtr1);

functions.h

void matrix_insert(int *mtr);

functions.cc

void matrix_insert(int *mtr) {
  short i, j;

  for (i = 0; i < Size; i++) {
    for (j = 0; j < Size; j++) {
      std::cin >> *(mtr + i * Size + j);
    }
  }
}

This is actually working but I don’t like this way…
Is there a better method?

Thanks!

EDIT:
Is possible to emulate matrix with vector?

Answer 1

If you really want to use C arrays, then you can do it as follows:

main.cc

int mtr1[Size][Size];
matrix_insert(mtr1);

functions.h

const short Size = 10;
void matrix_insert(int mtr[Size][Size]);

functions.cc

void matrix_insert(int mtr[Size][Size]) {
  short i, j;

  for (i = 0; i < Size; i++) {
    for (j = 0; j < Size; j++) {
      std::cin >> mtr[i][j];
    }
  }
}

Working version: http://ideone.com/1ik7T9