Visual C++ Debugging???

So I have my program running with input from a file:

ie Project Menu -> Properties -> Debugging -> Command Arguments -> I have:

Code:

< inputfile.txt

The program works fine when I run without debugging. It loads the input from the file just fine...

Now, when I want to debug, and stop at breakpoints etc, it *IGNORES* that file completely.

Why? Is there any way to debug WITH command line arguments (input from file)?

I seem to recall that you might not be able to redirect input when running through the debugger for some reason. Regular command line arguments will work fine. Were you able to search for anybody else with the same problem?

Originally Posted by Daved

I seem to recall that you might not be able to redirect input when running through the debugger for some reason. Regular command line arguments will work fine. Were you able to search for anybody else with the same problem?

Hmm, wow... That sucks. Pretty big feature to lose out on... Unfortunately no, even tried Google.

Which version are you using?

Originally Posted by Daved

Which version are you using?

http://img53.imageshack.us/img53/938...versionzn8.png

Is that feature not available in my version?

I don't know. This was the first hit when I searched for "redirect input Visual C++ debug":

http://forums.msdn.microsoft.com/en/...-fe716f94b2cc/

It seems to indicate there might be a bug, but I don't have time to test it or search further at the moment.

Ahhhh s h * t

There has to be some kind of a workaround?

One workaround would be to add something like "for(;;);" to the start of your program, execute it from a command prompt, and then once the program it running, attach your debugger to the running proces and move the execution point to the next statement.

Originally Posted by Mole42

One workaround would be to add something like "for(;;" to the start of your program, execute it from a command prompt, and then once the program it running, attach your debugger to the running proces and move the execution point to the next statement.

Oh wow... Trying this...

[Edit]: How do you move the execution point to the next statement?

Take the yellow arrow and drag it to the line you want to move to.

Originally Posted by Elysia

Take the yellow arrow and drag it to the line you want to move to.

Yellow arrow? Is this in a menu or a toolbar?

[Edit]: Added screenshot so it's easier to point it out:

http://img297.imageshack.us/img297/839/visualgu1.png

First, break the program (press the pause button).
A yellow arrow will point at the line it's currently at (it's to the left, where you can see the breakpoint).
Grab it and drag it to the line you want to move to.

If it pops up some dialog after you do, simply dismiss it with OK.

Originally Posted by Elysia

First, break the program (press the pause button).
A yellow arrow will point at the line it's currently at (it's to the left, where you can see the breakpoint).
Grab it and drag it to the line you want to move to.

If it pops up some dialog after you do, simply dismiss it with OK.

Wow, you guys on these forums are geniuses, haha!

Works great!!!

One issue (with Visual in general I guess), is there a way to get it to not step into the C++ stuff for every cin and cout? (Not my code)

Code:

template<class _Traits> inline
	basic_ostream<char, _Traits>& __CLRCALL_OR_CDECL operator<<(
		basic_ostream<char, _Traits>& _Ostr,
		const char *_Val)
	{	// insert NTBS into char stream //<--- steps in on this line every cin and every cout
	typedef char _Elem;
	typedef basic_ostream<_Elem, _Traits> _Myos;
	ios_base::iostate _State = ios_base::goodbit;
	streamsize _Count = (streamsize)_Traits::length(_Val);	// may overflow
	streamsize _Pad = _Ostr.width() <= 0 || _Ostr.width() <= _Count
		? 0 : _Ostr.width() - _Count;
	const typename _Myos::sentry _Ok(_Ostr);

etc...

Also, just curious, how does Visual C++ know that the process I am attaching to is the exact same as the one I have open when I click debug?

Man this is awesome!!!! Thanks guys!!!

For the quick first question: use step over (F10 with the VS6 scheme).