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zerver,

Anything's possible--it's only software after all. It's just a matter of cost. I've learned that venturing off the beaten MFC path is fraught with peril. We're looking to other...

Alin,

I did try handling WM_GETMINMAXINFO. It did correctly restrict the size of the window, but it still behaved maximized. It lost the title bar. Also when it was the active window, the other...

zerver,

Thanks for the answer. I tried it, and this solution only blocks the action of clicking on the maximize button. So, double clicking on the title bar still maximizes. There's likely...

I have an MDI application with windows that can maximize, minimize, etc.--all the default functionality you'd expect.

I have one MDI child window that behaves as a modeless dialog that I want to...

Post your code, please.

Jeff

Yes. You can use it, change it, redistribute it. It can be used in open source and commercial projects. It's a completely open license that is much more relaxed than GPL, for instance. It does...

I would suggest using both boost::filesystem and boost::regex. They are both portable and powerful.

Jeff

Take your example of adding a derived class 'truck'. In the casting example, it would compile and run without any changes, perhaps leading to undesired behavior.

In the Visitor example, you will...

Unit tests should not care about inheritance or polymorphism, but about testing interfaces, pre and post conditions, functionality, etc.

"Unit testing" is over used and can mean different things. ...

vector will always be contiguous, even after reallocating.

The usual reason for choosing a deque over a vector is that it may not be possible for the OS to find a large block of contiguous memory,...

Intersting. You must be calling this a lot. I'm assuming that you are profiling on a release build, not a debug build, and running outside the debugger.

Just out of curiousity, what are the...

I missed the dll requirement. This will only work as statically linked.

One option, if you know all the types that will be used, is to move the getInstace to an implementation file and...

This works for me:



#include <iostream>

using namespace std;

template <class T>
class Singleton

And if you're not using vc++ 6.0 (which has a bug), you can also make the destructor private.

Jeff

Definitely a Visitor should have a pure virtual interface. The resulting compile error generated when a new type is added is what separates the Visitor Pattern from type checking. It forces you to...

The overhead isn't bad: it's a double-dispatch technique, resulting in two virtual function calls. This is usually not an issue.



One last recommendation: boost::variant is a simple object...

Sounds good to me! I think you're on the right track.

If you get tripped up with the code, let us know.

Jeff

But that's a different problem, with varying solutions that don't sacrifice the fundamental design. The file/folder relationship is simple and obvious, and should be modeled in a simple and obvious...

timestamp?

Jeff

Reading this thread, I was also going to suggest the Visitor pattern.

Be aware that having isFile()/isFolder() methods is just as bad as using dynamic_cast<> from a design standpoint. They both...

'for' begins another scope, allowing you to hide outer-scope variables.
'float i = 0.0f, j = 0;' defines two floats, i and j.

solution: set j = 0 before the loop:


int j = 0;
for(float i =...

And also the reason I used the word "clarify" in my post :D

Jeff

To confuse even more (and hopefully clarify by doing so):


A a0;
A a1(a0); // copy constructor
A a2 = a1; // copy constructor
a2 = a1; // assignment operator


Jeff

Although there is some amount of error inherent in floating point calculations, you can keep that error constant by avoiding operations that accumulate the error. For instance, to iterate over a...

You can use boost::rational for exact computation.

However, your application most likely does not need it. A certain amount of error is acceptable in most applications, including virtually all...