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xV
I post too much
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 Posted: Fri Oct 24, 2008 8:05 pm Post subject: Program exiting automatically |
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What command would I use to make a program not automatically exit?
I think I have a clue something like
but I tried that, but it didn't work.
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hcavolsdsadgadsg
I'm a spammer
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| Posted: Fri Oct 24, 2008 8:12 pm Post subject: |
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| run it from the command line.
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Frostbyt3
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| Posted: Fri Oct 24, 2008 8:18 pm Post subject: |
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| Code: | while (exit == false)
{
//Do something
if input = "exit"
exit = true;
}
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Pseudo code for a loop.
A better way is to get input using a switch.
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xV
I post too much
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| Posted: Fri Oct 24, 2008 8:28 pm Post subject: |
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Okay, I don't really know what I'm doing wrong, but can you please tell me?
| Code: | // my second program in C++
#include <iostream>
using namespace std;
int main ()
{
cout << "Hello World! ";
cout << "I'm a C++ program";
return 0;
}
while {exit == false}
{
cout << "You can now exit. ";
if input = "exit"
exit = true
} |
http://pastebin.com/d2afed972
These are the 4 errors I'm getting:
d:\documents and settings\owner\my documents\visual studio 2008\projects\hello world!\hello world!\hello world.cpp(14) : error C2059: syntax error : 'while'
d:\documents and settings\owner\my documents\visual studio 2008\projects\hello world!\hello world!\hello world.cpp(14) : error C2143: syntax error : missing ';' before '{'
d:\documents and settings\owner\my documents\visual studio 2008\projects\hello world!\hello world!\hello world.cpp(14) : error C2447: '{' : missing function header (old-style formal list?)
d:\documents and settings\owner\my documents\visual studio 2008\projects\hello world!\hello world!\hello world.cpp(15) : error C2447: '{' : missing function header (old-style formal list?)
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Last edited by xV on Fri Oct 24, 2008 8:30 pm; edited 2 times in total |
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dEEznutz
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| Posted: Fri Oct 24, 2008 8:29 pm Post subject: |
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cin.get()
?
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xV
I post too much
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Posts: 3783
Location: Seattle
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| Posted: Fri Oct 24, 2008 8:31 pm Post subject: |
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| dEEznutz wrote: | cin.get()
? |
Sorry, I just started learning. Can you tell me what that does and how I'll be able to use it? I'm just making a very simple program that just says a line of text. If it helps, my project is Win32, someone told me I should use that.
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Frostbyt3
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| Posted: Fri Oct 24, 2008 8:34 pm Post subject: |
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Your error there is that the while is never reached.
Place it in the main method, and then it'll actually be reached.
As the other guy said
| Code: | cin.get();
cin.sync(); |
will stop the program, but you can't do anything after that. The switch method is a good way to do things.
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clanner
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| Posted: Fri Oct 24, 2008 8:35 pm Post subject: |
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Well, one of the really cheap ways is to add
at the end of your code.
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Frostbyt3
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| Posted: Fri Oct 24, 2008 8:37 pm Post subject: |
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| clanner wrote: | Well, one of the really cheap ways is to add
at the end of your code. |
Thats also a pretty bad way...
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xV
I post too much
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| Posted: Fri Oct 24, 2008 8:39 pm Post subject: |
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Clanner, I tried to put your code into this simple code and I get 2 errors.
http://pastebin.com/d6d09cc99
Errors:
| Quote: | | MSVCRTD.lib(crtexew.obj) : error LNK2019: unresolved external symbol _WinMain@16 referenced in function ___tmainCRTStartup |
| Quote: | | D:\Documents and Settings\owner\My Documents\Visual Studio 2008\Projects\My First Project!\Debug\My First Project!.exe : fatal error LNK1120: 1 unresolved externals |
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dEEznutz
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| Posted: Fri Oct 24, 2008 8:40 pm Post subject: |
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| Frostbyt3 wrote: | | clanner wrote: | Well, one of the really cheap ways is to add
at the end of your code. |
Thats also a pretty bad way... |
Seriously, do not use that.
Try putting it before return 0;
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xV
I post too much
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| Posted: Fri Oct 24, 2008 8:47 pm Post subject: |
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I went back to what Frostbyt3 said and used this code:
| Code: | // my second program in C++
#include <iostream>
using namespace std;
int main ()
{
while (exit == false)
{
cout << "Hello World! ";
cout << "I'm a C++ program";
return 0;
if input = "exit"
exit = true;
}
} |
And returned with only one error, not a really big error I think.
| Quote: | | D:\documents and settings\owner\my documents\visual studio 2008\projects\my first project!\my first project!\hello.cpp(14) : error C2061: syntax error : identifier 'input' |
Do you know what's wrong?
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Snootae
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| Posted: Fri Oct 24, 2008 8:47 pm Post subject: |
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you stuffed up lots of this
| Code: | while (exit == false)
{
cout << "You can now exit. ";
if input = "exit"
exit = true;
} |
wrong brackets and no ; its fixed
also, go and look at some basic C++ tutorials because they are far easier than asking us everything
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hcavolsdsadgadsg
I'm a spammer
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Posts: 5801
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| Posted: Fri Oct 24, 2008 8:49 pm Post subject: |
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cin.sync
cin.ignore / get.
| Code: | #include <iostream>
int main (){
std::cout << "Hello World!";
std::cout << "I'm a C++ program";
std::cin.sync();
std::cin.ignore();
return 0;
} |
Last edited by hcavolsdsadgadsg on Fri Oct 24, 2008 8:51 pm; edited 1 time in total |
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xV
I post too much
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Joined: 03 Jan 2008
Posts: 3783
Location: Seattle
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| Posted: Fri Oct 24, 2008 9:15 pm Post subject: |
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| slovach wrote: | cin.sync
cin.ignore / get.
| Code: | #include <iostream>
int main (){
std::cout << "Hello World!";
std::cout << "I'm a C++ program";
std::cin.sync();
std::cin.ignore();
return 0;
} |
|
:O What's all that std stuff?
Could I get rid of all that std:: if I used: | Code: | | using namespace std; |
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