so in here, i'm trying to pass the dokter value to main function, and from what i know, function can only return one value at a time, so is there any other way to return the dokter value to main function? Any help/advice will be appreciated, thanks!

void booking(int argc, char** argv){
    int *dokter;
    system("cls");

    printf("\nSilahkan pilih Dokter yang tersedia\n1. Dr. Saburo\n2. Dr. Bineka\n3. Dr. Saskeh\n4. Dr. Lur Bor\n5. Dr. Frutang");
    printf("\nPilih (1/2/3/4/5) >: ");
    scanf("%d", &dokter);

    if(dokter == 1){
        printf("Hari yang tersedia : Senin, Rabu, Kamis, Jumat");
    } else if(dokter == 2){
        printf("Hari yang tersedia : Selasa, Rabu, Jumat, Sabtu");
    } else if(dokter == 3){
        printf("Hari yang tersedia : Senin, Rabu, Kamis, Sabtu, Minggu");
    } else if(dokter == 4){
        printf("Hari yang tersedia : Senin, Kamis, Jumat");
    } else if(dokter == 5){
        printf("Hari yang tersedia : Selasa, Rabu, Sabtu, Minggu");
    } else{
        printf("Invalid");
    }

    jadwal = (char*) malloc(100*sizeof(char));
    printf("\nJadwal >: ");
    scanf(" 1[^\n]s", jadwal);
    return jadwal;
    free(jadwal);
}

CodePudding user response：

You have a few options, here's two:

1. Make a struct, which contains members of what you want to return. In your case it looks like you want to return a char* and an int.

struct MyStruct {
    char* string;
    int foo;
};

2. Make one or more of the things you are returning a global variable.

int *dokter;

...

void booking(int argc, char** argv){
    system("cls");
    ...
}

CodePudding user response：

Quite a few things:

• int *dokter; does not allocate any memory for an int, but rather memory for the address of an int. This should simply be int dokter;.

• The field-width specifier in scanf("1[^\n]s", jadwal) should be one less than the size of your buffer, which would be 99. Additionally, %[] and %s are two different specifiers. %[]s is the first of these, followed by a literal s.

  • You must also consider that the previous scanf has left the newline in the buffer, and as such a properly formatted specifier of