I need a Little help with the cout << in windows programming - PSP3D.com - Sony PlayStation Portable News, Homebrew, Hacks, Reviews, Videos, Mods, Forums

badg0r · #1 (**permalink**) 04-21-2007, 04:14 PM

Hello members of psp3d,

As you see I came back to my old beloving place to ask you guys for some help.

Ive started to learn c++ for windows cause I cant run linux on my standard defenition tv with my ps3. I had the plan to do some programming in linux when I had my linux up and running on my ps3 system. So this dream is vanished away.

Now my problem...

When I want to see the results of my variable or another print function like simple text I see the text for a mili second and then the prompt is away.

So if I use this code in my compiler:

#include
using namespace std;
int main()
{
// variablen
int a,b;
int uitkomst;

// de waarden van de variablen en het rekenen met variablen
a = 25;
b = 5;
a = a * 4;
uitkomst = a * b;

// Dit wordt op jou beeldscherm geprint
// De \n na de eerste lijn staat voor: newline.
// Hierdoor kun je verschillende teksten of antwoorden plaatsen

cout << "de uitkomst moet 500 zijn dus controleer het goed\n";
cout << uitkomst;

// altijd een opdracht afsluiten met return 0; Vergeet de ; niet

return 0;

}

Then I see:

Quote:

De uitkomst moet 500 zijn dus controleer het goed
500

But only for a mili second.

How can I see it forever in this prompt?

Greetz Badg0r,

p.s. It's not something I will use all the time but I think it's good to know.

theaceoffire · #2 (**permalink**) 04-21-2007, 08:08 PM

Ok, your problem is that you are returning 0.

In other words, your program works, but since your program is done windows automatically closes it.

To fix this, insert this line of code right before return 0:

Quote:

char fakeexit;
cin>>fakeexit;

This will wait until you enter a letter before exiting your program.

theaceoffire · #3 (**permalink**) 04-22-2007, 12:07 AM

He is learning, that is probably why this example is so simple.

On a side note, its a windows thing about auto closing programs when they return a numerical value: the psp may not auto close it.

Not sure though.

gun335 · #4 (**permalink**) 04-22-2007, 12:35 AM

Badg0r, you're a real old member. I remember you from back when I used to lurk about and back before I signed up, you should be more active here

badg0r · #5 (**permalink**) 04-22-2007, 04:06 AM

Thanks office but im running in some problems here.
Ive tried to put that code infront of the line return 0; and now im getting this error message:

function `int main()':
23 expected `;' before "fakeexit"

Then I deleted the line with cin and my code was ok, but I had the same results when I compiled it and started the little application.

Thanks for your help,

Greetz,

p.s. Yes Gun that's true, I was asked to be A moderator at the biggest psp homebrew site of holland and belgium so I was more active there. Now ive stoped my work there becouse im to bussy with work and my girlfriend and my study.

I study for C++ and Im waiting to go back to school to study how to do polyester like bodykit making for cars. So it's A dubble study to do.

theaceoffire · #6 (**permalink**) 04-23-2007, 06:02 PM

Quote:

using namespace std;
int main()
{
int a,b;
int uitkomst;
char exit;

a = 25;
b = 5;
a = a * 4;
uitkomst = a * b;

cout << "de uitkomst moet 500 zijn dus controleer het goed\n:"<< uitkomst;
cin>>exit;
return 0;
}

Try that.

Sometimes it want's all declarations at the top of the code... Ah well, what can you do.

Percival · #7 (**permalink**) 04-23-2007, 08:31 PM

To see the output without using cin, open a command window via start->Run... ("Uitvoeren..." in dutch), type in cmd and press enter. You will see something like this:

Start your program in this window and it won't dissappear immediately after the program has finished.