Untitled

#include <stdio.h>
#include <stdlib.h>

double conversion(double euros)

 {    
      double francs = 0;
      
      francs = 6.55957 * euros;
      return francs; 
 } 
 
int continuer = 2;
int main(int argc, char *argv[])
 {  
do {
     double donnee = 0;
     printf("Convertir euros en francs : ", conversion(donnee)); 
     scanf("%lf", &donnee);
     
     printf("Le triple de ce nombre est %lf\n\n", conversion(donnee)); 
     
     printf("Continuer (oui = 1, non 2) : \n"); 
     scanf("%ld", &continuer);     
    
} while (continuer == 1) {
     return 0; 
   }