Dissapearing c programs

hammil · 06-28-2007, 09:52 AM

Hi
I have just started to program in C using Miracle C compiler, but when I run programs it shows the output for a sec but then disappears.

Hamish

shuuhen · 06-30-2007, 01:14 PM

In Windows, the DOS window will exit as soon as the program completes if you didn't already have the DOS window open.

A simple solution is to have a UserWait() function. Basically all this function will do is print a message telling the user to press return then wait until the user has pressed return.

system("PAUSE") will also wait for the user to press a key, but it's bad practice since it relies on the pause.exe program. system("PAUSE") will only work on Windows. Implementing a UserWait() function with printf() a do-while loop and getchar() should work fine on all systems.

If you need help implementing a UserWait() function, I can help after you post a first attempt.

hammil · 06-30-2007, 01:33 PM

OK, I tried doing that but it came with this error:

Code:

Linker Error (Severity 4)
	Module "a" in file "c:\program files\miracle c\test.obj"
	references unresolved external "_userwait"
	at offset 0578H in segment "_text".

Do I have to include any header files?

Hamish

shuuhen · 06-30-2007, 05:35 PM

Can you post your code? You'll need stdio.h for both getchar() and printf().

06-28-2007, 09:52 AM	#1 (permalink)
hammil Registered User Join Date: Jun 2007 Posts: 18 OS: WinXP	Dissapearing c programs Hi I have just started to program in C using Miracle C compiler, but when I run programs it shows the output for a sec but then disappears. Hamish __________________ If it works how you want it, don't do *ANYTHING*

06-30-2007, 01:14 PM	#2 (permalink)
shuuhen Manager Join Date: Sep 2004 Location: Colorado Posts: 988 OS: Mac OS 9.1, Mac OS X 10.5.8, WinXP Pro, FreeBSD 6.0, Gentoo Linux My System	Re: Dissapearing c programs In Windows, the DOS window will exit as soon as the program completes if you didn't already have the DOS window open. A simple solution is to have a UserWait() function. Basically all this function will do is print a message telling the user to press return then wait until the user has pressed return. system("PAUSE") will also wait for the user to press a key, but it's bad practice since it relies on the pause.exe program. system("PAUSE") will only work on Windows. Implementing a UserWait() function with printf() a do-while loop and getchar() should work fine on all systems. If you need help implementing a UserWait() function, I can help after you post a first attempt. __________________ Has it been a few days since I replied to your thread? Don't panic! I'm a busy college student and may forget a post if I'm extra busy (or it might just take me a while to be able to do a decent reply). If you still need help and are awaiting my reply after a few days, PM me about it. When posting what errors you get, please give the full message. It makes helping you much easier.

06-30-2007, 01:33 PM	#3 (permalink)
hammil Registered User Join Date: Jun 2007 Posts: 18 OS: WinXP	Re: Dissapearing c programs OK, I tried doing that but it came with this error: Code: Linker Error (Severity 4) Module "a" in file "c:\program files\miracle c\test.obj" references unresolved external "_userwait" at offset 0578H in segment "_text". Do I have to include any header files? Hamish __________________ If it works how you want it, don't do *ANYTHING*

06-30-2007, 05:35 PM	#4 (permalink)
shuuhen Manager Join Date: Sep 2004 Location: Colorado Posts: 988 OS: Mac OS 9.1, Mac OS X 10.5.8, WinXP Pro, FreeBSD 6.0, Gentoo Linux My System	Re: Dissapearing c programs Can you post your code? You'll need stdio.h for both getchar() and printf(). __________________ Has it been a few days since I replied to your thread? Don't panic! I'm a busy college student and may forget a post if I'm extra busy (or it might just take me a while to be able to do a decent reply). If you still need help and are awaiting my reply after a few days, PM me about it. When posting what errors you get, please give the full message. It makes helping you much easier.