avevo gia provato a fare in questa maniera ma l' errore che mi usciva era questo
In file included from main.cpp:17:0:newfile.h:77:38: error: 'MAXC' was not declared in this scope
void inserisci_matrice(int matrice[][MAXC],int righe,int colonne)
^
newfile.h:77:43: error: expected ')' before ',' token
void inserisci_matrice(int matrice[][MAXC],int righe,int colonne)
^
newfile.h:77:44: error: expected unqualified-id before 'int'
void inserisci_matrice(int matrice[][MAXC],int righe,int colonne)