int SubMat(MatHandler mat1, MatHandler mat2, MatHandler *ans){
matrix_t m = *(matrix_t *)mat2;
if (!mat2) return M_ERR_PTRISNULL;
for (int i = 0; i < m.cols; ++i){
for (int j = 0; j < m.rows; ++j){
int t = idx(i, m.cols, j);
m.data[t] *= -1;
}
}
return AddMat(mat1, &m, ans);
}
int main(void)
{
short Tab1[MAX_COL][MAX_COL] ,Tab2[MAX_COL][MAX_COL] ,Tab3[MAX_COL][MAX_COL]={0}
,Vect[MAX_COL]={0},n,val;
char choix,retour='O';
srand(time(NULL));
Init(&Tab1[0][0],&Tab2[0][0],&n);
printf("\n Matrice 1: \n");
printf(" ----------\n");
Affiche(&Tab1[0][0],n,n);
printf("\n");
printf(" Matrice 2: \n");
printf(" ----------\n");
Affiche(&Tab2[0][0],n,n);
printf("\n");
system("pause");
system("cls");
while((retour=='O')||(retour=='o'))
{
Menu(&choix);
switch(choix)
{
case '1':
printf("Valeur du nombre a ajouter a la premiere matrice : ");
scanf("%hd",&val);
AddVal(&Tab1[0][0],&Tab3[0][0],n,val);
printf("\n Resultat : \n");
printf(" -----------\n");
Affiche(&Tab3[0][0],n,n);
printf("\n");
break;
case '2':
AddMat(&Tab1[0][0],&Tab2[0][0],&Tab3[0][0],n);
printf("\n Resultat : \n");
printf(" -----------\n");
Affiche(&Tab3[0][0],n,n);
printf("\n");
break;
case '3':
printf("Valeur du nombre a soustraire a la premiere matrice : ");
scanf("%hd",&val);
SousVal(&Tab1[0][0],&Tab3[0][0],n,val);
printf("\n Resultat : \n");
printf(" -----------\n");
Affiche(&Tab3[0][0],n,n);
printf("\n");
break;
case '4':
SousMat(&Tab1[0][0],&Tab2[0][0],&Tab3[0][0],n);
printf("\n Resultat : \n");
printf(" -----------\n");
Affiche(&Tab3[0][0],n,n);
printf("\n");
break;
case '5':
printf("Valeur du nombre a multiplier a la premiere matrice : ");
scanf("%hd",&val);
MultVal(&Tab1[0][0],&Tab3[0][0],n,val);
printf("\n Resultat : \n");
printf(" -----------\n");
Affiche(&Tab3[0][0],n,n);
printf("\n");
break;
case '6':
MultMat(&Tab1[0][0],&Tab2[0][0],&Vect[0],n);
printf("\n Matrice 1 : \n");
printf(" -----------\n");
Affiche(&Tab1[0][0],n,n);
printf("\n");
printf("\n Matrice 2 : \n");
printf(" -----------\n");
Affiche(&Tab2[0][0],n,n);
printf("\n Vecteur : \n");
printf(" -----------\n");
Affiche(&Vect[0],n,1);
break;
case '7': ;
}
if (choix!='7')
{
printf("\n\nRetour au menu ? [O/N] \n");
fflush(stdin);
scanf("%c",&retour);
system("cls");
}
else
{
retour='n';
}
}
system("pause");
return(0);
}
