main.c

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

typedef struct list{
char name[100];
int number;
struct list *n;
} List;

List *LoadFirst (List l, int b){
List *first;
if (b==1){
    first = malloc(sizeof(l));
    printf("Inserisci nome \n");
    //gets(first->name);
    scanf("%s", first->name);
    printf("Inserisci numero \n");
    scanf("%d", &first->number);
    first->n=NULL;
    }
    else if (b==0){
        first = NULL;
    }
return (first);
}

void Load (List *first, List l){
List *scroll=first;
while(scroll->n!=NULL){
    scroll = scroll->n;
}
scroll->n = malloc(sizeof(l));
scroll = scroll->n;
printf("Inserisci nome \n");
//gets(scroll->name);
scanf("%s", scroll->name);
printf("Inserisci numero \n");
scanf("%d", &scroll->number);
scroll->n=NULL;
}

void View(List *first){
     printf("-->");
     while (first!=NULL){
        printf("Nome: %s ", first->name);
        printf ("Numero: %d  \n", first->number);
        printf("-->");
        first = first->n;
        }
        printf("null \n \n");
}

List *DeletebyName(List *first, char a[100]){
List *previous, *next;
if (first!=NULL){
    next=first;
    previous=NULL;
}
else{
    return 0;
}
if (strcmp(a, first->name)==0){
    first=first->n;
    free(next);
    return (first);
}
else{
    while(next->n!=NULL){
        if (strcmp(a, next->name)==0){
            previous->n=next->n;
            free(next);
            return (first);
        }
        else{
            previous=next;
            next=next->n;
        }
    }
}

return (first);
}

int main()
{
    List paper;
    int b, x, s;
    char Name[100];
    List *first;
    printf("Gestione Rubrica\n");
    printf("\n");
    printf("Nessuna rubrica trovata. Crearne una nuova? (1-Si 2-No) \n");
    scanf("%d", &b);
    if (b!=1){
        return 0;
    }
    else if(b==1){
        first = LoadFirst(paper, b);
    }
    while(b==1){
    printf("Che cosa si desidera fare? \n");
    printf("\n");
    printf("1- Aggiungi nominativi \n");
    printf("2- Visualizza rubrica \n");
    printf("3- Rimuovi nominativo \n");
    scanf("%d", &s);
    switch(s){
        case 1:
        x = 1;
        while (x==1){
        Load(first, paper);
        printf("Aggiungere altri nominativi? (1-Si 2-No) \n");
        scanf("%d", &x);
        }
    break;

    case 2:
        View(first);
        break;

    case 3:
        printf("Inserisci il nominativo da eliminare \n");
        scanf("%s", Name);
        printf("%s", Name);
        first = DeletebyName(first, Name);
        printf("\n");
        printf("Nuova rubrica \n");
        View(first);
        break;
        }
    printf("Si desidera fare altra operazione? (1- Si 2-No)\n");
    scanf("%d", &b);
    }
    return 0;
}