Thread: wanna return to main function after command input, but this exits to windows...help!

So you want to continue to let the user input various things. What you want is a while loop. Here is how it works and you can incorporate it into your program.

Code:

int num = 0;

while( num != -1 ) // Here is the condition that has to be met
{
  printf( "Enter a number (-1 quits): " );
  scanf( "%i", &num );

  printf( "You put %i", num );
}

So you want to continue taking input until a condition is met. This loop will go on as expected while the condition evaluates to TRUE.

so i should put it in the beginning, like this? :

Code:

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


int main(int argc, char *argv[])
  {

int x;
int CErnesto;
int CZeManel;

int Andre;
int Angelo;
int Diogo;
int Ernani;
int Jorge;
int Rui;
int Sergio;
int Tiago;

int Bruno;
int Filipa;
int Filipe;
int Lara;
int Mafalda;
int SofiaE;
int SofiaP;
int Susana;

int EquipaGolfinho;
int EquipaLeao;

int Ajuda;


CErnesto=1;
CZeManel=2;
Andre=3;
Angelo=4;
Diogo=5;
Ernani=6;
Jorge=7;
Rui=8;
Sergio=9;
Tiago=10;
Bruno=11;
Filipa=12;
Filipe=13;
Lara=14;
Mafalda=15;
SofiaE=16;
SofiaP=17;
Susana=18;
EquipaGolfinho=19;
EquipaLeao=20;
Ajuda=118;

int num =0;
while( num != -1 ) // Here is the condition that has to be met
{


   printf("  Introduza o numero correspondente a informacao que pretende ou\npressione 118 para ajuda com os numeros correspndentes: "); 
   scanf( "%d", &x );
if (x==Ajuda)
  {
   printf("\nCErnesto=1\nCZeManel=2\nAndre=3\nAngelo=4\nDiogo=5\nErnani=6\nJorge=7\nRui=8\nSergio=9\nTiago=10\nBruno=11\nFilipa=12\nFilipe=13\nLara=14\nMafalda=15\nSofiaE=16\nSofiaP=17\nSusana=18\nEquipaGolfinho=19\nEquipaLeao=20\n\n");
  }
if (x==Diogo)
  {
   printf("Nome completo: Diogo Alexandre Nasceu a: 22/12/1987 \nTotem: Preguica Preguicosa\n");
   system("PAUSE");
  }
else
   system("PAUSE");
  }
  }

like this? or did i put it wrong? if wrong can you point exacly where do i have to put it in?

thanks for help as for now

Well a few things. First of all, you need to put a return 0 statement in as the last line in your main function. You specify that it will return an int but you never return anything. Even though it may compile it is incorrect. Also you are checking while( num != -1 ) but when you take input from the user you set it to the variable x. So take out the int num = 0; and change the while loop to while( x != -1 ) and it should be fine. You might want to also inform the user that -1 quits the program.

This is an implementation dependent discussion.

Read this and it should help:

http://faq.cprogramming.com/cgi-bin/...&id=1043284385

What's the point in doing that to declare them? i didnt get it...
BTW, is it possible to, like, put a "kind of password" in the beginning of the program to multi users, giving each user a different pass, using the if and else command in the beginning, like:

Code:

int user1, pass1;
user1=x
pass1=y
printf("Input user and pass ");
scanf( "%d%d", &user1, &pass1);
if (user1==x)
continue;
else
break;
if (pass1==y)
continue;
else
break;

i think this method works, but it is to only one user and pass. What have i to do to ask for more than 1 user and pass, being all users different and so the passes?

Originally posted by Slaught
What's the point in doing that to declare them? i didnt get it...
BTW, is it possible to, like, put a "kind of password" in the beginning of the program to multi users, giving each user a different pass, using the if and else command in the beginning, like:

int user1, pass1;
user1=x
pass1=y
printf("Input user and pass ");
scanf( "%d%d", &user1, &pass1);
if (user1==x)
continue;
else
break;
if (pass1==y)
continue;
else
break;


i think this method works, but it is to only one user and pass. What have i to do to ask for more than 1 user and pass, being all users different and so the passes?

use a struct to hold the pw variable, user name, etc. Use the define statement to declare your set value for the password.

typedef struct data1
{
int password;
char name[20];
} user;

user mydata[MAXUSERS];

loop through asking each of MAXUSERS his or her name and password, but I'd suspect that you'd be better off using a char array for the password than you would an int....

huh, like, i never worked with that kind of function, so i dont really know how to input users and passes in there for "making the loop"....can u put an example of that, with at least 3 different users and 1 unique pass for each one?

Thanks!