A Good C++ Library for SOAP
What are the alternatives for SOAP development in C++? Which one do you prefer and is most supported/modern? ...
c++
Simplified algorithm for calculating remaining space in a circular buffer?
I was wonder if there is a simpler (single) way to calculate the remaining space in a circular buffer than this? int remaining = (end > start) ? end-start : bufferSize - start + end; ...
How best to implement BCD as an exercise?
I'm a beginner (self-learning) programmer learning C++, and recently I decided to implement a binary-coded decimal (BCD) class as an exercise, and so I could handle very large numbers on Project Euler. I'd like to do it as basically as possible, starting properly from scratch. I started off using an array of ints, where every digit of t...
Debugging a crash after exiting? (After main returned)
This is a fairly involved bug, and I've tried looking around to find other sources of help, but for reasons I don't understand, "Program Crashes in Vista" is not the most helpful query. The issue I'm having is that the program I'm working on - a graphical, multithreaded data visualization software that uses OpenGL and the Windows API - ...
Visaul C++ 2005 hangs during qt builds
At my shop, the main product app is a mongrel built on MFC, QT and other random things devs have thrown in over the years. In the current stack, Qt toolkit is on the way out, but still features heavily. If I have SQL 2005 Management studio open and have to do a full build, it usually hangs a CPU (even after the offending process is take...
How do I make Microsoft VCC crash out on the first build-error?
My automated build process uses a command-line to build something like this: devenv.exe myproj.sln /build release It is a very long build-process which integrates components made by a team of developers. It takes about half an hour to run in release mode. Usually if one thing goes wrong then plenty of other dependancies will go wrong,...
Naming convention for params of ctors and setters
For those of you who name you member variables with no special notation like m_foo or foo_, how do you name parameters to your ctors and setters? Some options I've tried so far... Obj(int foo) : foo(foo) { } void set_foo(int foo) { this->foo = foo; } Obj(int _foo) : foo(_foo) { } void set_foo(int _foo) { foo = _foo; } Obj(int a_foo) ...
How to work with the data in Binary in C/C++
Hello, I have to do some work work with integers, but I am interested in treat them as binary data, in a way that for example I can take the 4 most significant bits of an 32 bit value. What I am trying to do is, I have several 32 bit value I want to take for example, in the first one 4 bits, the second one 6 bits and the last one 22 bit...
How to define an object whose address is null?
I am wondering how I can define an object in C whose reference will be null? // definition of foo ... void * bar = &foo; // bar must be null There is some ways I could find to do it, but none fit my needs. __attribute__((weak)) extern int foo; //not working with cygwin/gcc 3.4 __attribute__((at(0))) int foo; //only with rvds #...
How to print out dash or dot using fprintf/printf?
As of now I'm using below line to print with out dot's fprintf( stdout, "%-40s[%d]", tag, data); I'm expecting the output would be something like following, Number of cards..................................[500] Fixed prize amount [in whole dollars]............[10] Is this a high winner prize?.....................[yes] How to prin...
Good logging library for managed/unmanaged application ?
What logging library or approach would you recommend for this case: We want to be able to log both from managed and unmanaged code For the unmanaged code, the implementation should not cross back into managed code, because this could cause our unmanaged threads to get 'caught' during a garbage collection. Performance is a concern NLo...
Visual Studio 2008 viewing dialog after breakpoint hit
I am building a C++ MFC application that creates modal dialog boxes, one at a time, while hiding the parent dialog. I wish to view the newly created modal dialogs when a breakpoint is hit when debugging in Visual Studio. However, anytime a breakpoint is hit, the contents of the dialog box are no longer rendered. The box simply goes white...
Blocking the standard error output of a programmatically run system command
I have this program in c++: #include <iostream> using namespace std; int main() { char buf[50]; cin.getline(buf,49); system(buf); return 0; } When I run and compile it and type for example "helo", my program prints the error: "helo" not found. Can I stop this error from being displayed? Is there any way to disable the error from...
CAD/CAM without C++
Hello, Is it possible to do CAD/CAM software without having to use C++? My company developed their software with c/C++ but that was more than 10 years ago. Today,there is a lot of legacy code that switching would force us to get rid of but i was wondering what the actual risks are. We have a lot of mathematical algorithms for toolpath c...
Is there a TRACE statement for basic win32 C++?
In MFC C++ (Visual Studio 6) I am used to using the TRACE macro for debugging. Is there an equivalent statement for plain win32? ...
Similar String algorithm
I'm looking for an algorithm, or at least theory of operation on how you would find similar text in two or more different strings... Much like the question posed here: http://stackoverflow.com/questions/246961/algorithm-to-find-similar-text, the difference being that my text strings will only ever be a handful of words. Like say I have...
Why won't cout << work with overloaded * operator?
I'm creating my first class, mainly guided by Overland's C++ Without Fear. I've made the overloaded friend ostream operator<<, which works fine. I've also overloaded the * operator, and that works fine. What doesn't work is when I try to output the result of the * operator directly: BCD bcd(10); //bcd is initialised to 10 BCD bcd2(15);...
Best way to organize a class hierarchy including an overridable "Update" function
I have a base class "Foo" that has an Update() function, which I want to be called once per frame for every instance of that class. Given an object instance of this class called "foo", then once per frame I will call foo->Update(). I have a class "Bar" derived from my base class, that also needs to update every frame. I could give the...
Is there a way to programmatically hide an carbon application on osx?
I have a carbon C++ application and I would like to programmatically do the equivalent of Command-H (to hide the application) which is available in the Application menu for my app. I have explored the carbon API for TransitionWindow and HideWindow and while these can hide my window, they do not do the equivalent of Command-H. I looked in...
When are constructors called?
If I define a local variable instance of a class halfway down my function without using a pointer and new, does the constructor get called on entering the function or where it is defined? If I define another instance of a class globally within the file does that constructor get called when executable is first loaded? What if multiple th...