You have to define what you mean by "not working." Is there a crash? Do you have an error code? What goes wrong? The difficult we do right away... ...the impossible takes slightly longer.

Go trough your program using your debugger - The debugging stops as soon as the stackoverflow happens. In case your program stops before entering the debug mode you might want to look into this one: http://stackoverflow.com/questions/6267837/stack-overflow-error-in-c-before-any-step[^] If neither one helps you I kindly ask you to post the source code of your main and the classes which are initialized at first - We can't read your mind, nor your HDD. You know the world is going crazy when the best rapper is a white guy, the best golfer is a black guy, the tallest guy in the NBA is Chinese, the Swiss hold the America's Cup, France is accusing the U.S. of arrogance, Germany doesn't want to go to war, and the three most powerful men in America are named "Bush", "Dick", and "Colon."

So stop using so much stack. Functions calling themselves endlessly is the usual cause. Dont do it.

As Richard said, I've already answered this question. You need to change the fscanf_s line as follows - fscanf_s(f_ptr_seed_inf,"%s\n",ftitle[ifl].GetBuffer(MAX_PATH), MAX_PATH); «_Superman_»  _I love work. It gives me something to do between weekends. _Microsoft MVP (Visual C++) (October 2009 - September 2013) Polymorphism in C

The problem is readying the string with fscanf_s. If you replace fscanf_s with fscanf, you will notice that it works without errors. The _s (secure) versions of the C-Runtime requires that the size of the buffer be known and this is validated by the function. So you need to pass in the size of the string as an argument following the actual string buffer as shown - fscanf_s(f_ptr_seed_inf,"%lf %lf %s\n",&sd_dis[ifl],&time_onset[ifl], ftitle[ifl].GetBuffer(MAX_PATH), MAX_PATH); Here is an excerpt from the documentation for scanf_s - Unlike scanf and wscanf, scanf_s and wscanf_s require the buffer size to be specified for all input parameters of type c, C, s, S, or string control sets that are enclosed in []. The buffer size in characters is passed as an additional parameter immediately following the pointer to the buffer or variable. For example, if you are reading a string, the buffer size for that string is passed as follows: char s[10]; scanf_s("%9s", s, _countof(s)); // buffer size is 10, width specification is 9 «_Superman_»  _I love work. It gives me something to do between weekends. _Microsoft MVP (Visual C++) (October 2009 - September 2013) Polymorphism in C

mrby123 wrote: I feel hard, since the width of the string in the input file is not fixed varying from 50 character to 120, so how to specify the buffer size. You have to use a buffer at least equal to the maximum string length of the input file (hence at least 120 characters long) and specify the size of your buffer (that is 120) in the scanf_s call. Veni, vidi, vici.

http://msdn.microsoft.com/en-us/library/z5hh6ee9(v=VS.80).aspx[^] http://msdn.microsoft.com/en-us/library/6ybhk9kc(v=VS.80).aspx[^] Why is common sense not common? Never argue with an idiot. They will drag you down to their level where they are an expert. Sometimes it takes a lot of work to be lazy Please stand in front of my pistol, smile and wait for the flash - JSOP 2012

As already stated, it's not an error but a warning. Compiler is simply making sure you're doing it on purpose and not by mistake, remember that casting may lead to digits being dropped and rounding (hence the warning). Cast the data to the appropriate type and the compiler won't warn you about it anymore.

:rolleyes:

thank you, really helped me.

thanks, that is useful to me.

You haven't mentioned what tools you use to develop and debug, but if you got a debugger running, it should automatically open the source code at the position where the error occurs. The message however sounds like it's from internal code, so, most likely, you won't recognize the code as yours. You now need to find out where in your code this function was called. For that you need to check the call stack. If no window is shown for it, see if you can activate it from the menu. If you don't know how to do this, check the help function from your development environment. Once you have the call stack, the focus will likely be on the topmost line, indicating the function that is shown in your source code window. Usually you can make an educated guess what kind of functionality should be performed here from the name of the function. I still suspect you're inside some deallocation routine, but it may be something different; check this! Now scan down the list in the call stack and find the first function that you recognize as part of your own source code. Doubleclick it or do whatever is required to navigate to that position. The source code window will then show the exact location in your source code where another function not from your source code is called. If the problem occurs during deallocation it may be tricky though, as the call may in fact occur at the end of a scope, where stack variables are destroyed. In that case the cursor in the code window may point to a line past the end of the scope; this can be a bit confusing at times... Anyway, once you've located the right location in your code, check the values of the parameters that are involved in the function (or deallocation) call, and see if they have values in the range you expect. Again, if this a deallocation problem, you may not see anything unusual amiss - in this case, if you don't know how to proceed, copy some of the code at that location and post it here.

emilio_grv wrote: Yes, but you can solve x + y = 2 + ax - y = 0 + bx + 3y = 4 + c to find the x and y that makes a2+b2+c2 the minimum possible. That is just another 'new' different problem. And what would be the 'practical' usefulness of the solution of such new problem is questionable. Consider, for instance, if the original system is, by remote chance: x = 1000 x = 0 emilio_grv wrote: Note also (not directly related to the post in answer) that saying that one particular equation is redundant is improper: all equation have the same dignity. Hence "find which equation to exclude" is a mis-posed problem. I can exclude another and get the same solution. It was a quick way to say: "when you have two linearly dependent equations, you may esclude one of them to find the solution", of course all the equations have the same dignity in the system, anyway you can arbitrarly choose one to solve the system. :) If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile. This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke [My articles] modified on Saturday, July 10, 2010 11:21 AM

Perhaps Gaussian elimination[^] is what you're after. Steve

Are you aware that if you have a lenghty operation in the main thread, UI messages won't be processed until the task is finished ? This means that the UI won't be redrawn and you won't be able to see any progress in the bar until the end of the task (in which case, all messages are processed at once and the progress is full). A better approach would be to run your lenghty task in a separate thread. I really recommand reading this excellent article[^] about threading. Cédric Moonen Software developer Charting control [v3.0] OpenGL game tutorial in C++

You add two variables for the two comboboxes. from class wizard add the two different CBN_SELCHANGE handlers.

mrby123 wrote: m_pv_unit is declared in the header file of Class A: CString m_pv_unit; which is assigned value from Combo Box. I suggest using CComboBox object instead. "One man's wage rise is another man's price increase." - Harold Wilson "Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons "Man who follows car will be exhausted." - Confucius

a nice program would check the range and ask for a proper value, before saving the value. -> "Please enter a valid value or quit" Press F1 for help or google it. Greetings from Germany

You are right. there was errors I fixed them. Now it works.

mrby123 wrote: What is the statement for checking if a directory exist ? You could either call _access() or let CreateDirectory() do it for you. "One man's wage rise is another man's price increase." - Harold Wilson "Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons "Man who follows car will be exhausted." - Confucius