/* If we are doing QM/MM, check that we got the atom numbers */
have_atomnumber = TRUE;
- for (int i = 0; i < gmx::ssize(atypes); i++)
+ for (gmx::index i = 0; i < gmx::ssize(atypes); i++)
{
have_atomnumber = have_atomnumber && (atypes.atomNumberFromAtomType(i) >= 0);
}