Okay, we know that the following two lines are equivalent - (0 == i) (i == 0) Also, the first method was encouraged in the past because that would have allowed the compiler to give an error message if you accidentally used '=' instead of '=='. My question is - in today's generation of pretty slick IDE's and intelligent compilers, d...
I wrote a sample program at http://codepad.org/ko8vVCDF that use a template function how do I retrict the template function to only use numbers? int, double etc. ...
Is it possible to convert UTF8 string in a std::string to std::wstring and vice versa in a platform independent manner? In a Windows application I would use MultiByteToWideChar and WideCharToMultiByte. However, the code is compiled for multiple OSes and I'm limited to standard C++ library. ...
Why does the code below return true only for a = 1? main(){ int a = 10; if (true == a) cout<<"Why am I not getting executed"; } ...
Suppose I have a LimitedValue class which holds a value, and is parameterized on int types 'min' and 'max'. You'd use it as a container for holding values which can only be in a certain range. You could use it such: LimitedValue< float, 0, 360 > someAngle( 45.0 ); someTrigFunction( someAngle ); so that 'someTrigFunction' knows that ...
I'm trying to learn C++ so forgive me if this question demonstrates a lack of basic knowledge, you see, the fact is, I have a lack of basic knowledge. I want some help working out how to create an iterator for a class I have created. I have a class 'Shape' which has a container of Points. I have a class 'Piece' which references a Shap...
I have seen a few (old) posts on the 'net about hacking together some support for pre-compiled headers in CMake. They all seem a bit all-over the place and everyone has their own way of doing it. What is the best way of doing it currently? ...
Is there a way to identify unused attributes/methods in Visual C++ 2008 Professional? If it's not possible by default, recommendations of 3rd-party tools are also much appreciated. Thanks, Florian Edit: nDepend only works for .NET assemblies. I'm looking for something that can be used with native C++ applications. ...
I am using wxWidgets and Visual C++ to create functionality similar to using Unix "tail -f" with rich formatting (colors, fonts, images) in a GUI. I am targeting both wxMSW and wxMAC. The obvious answer is to use wxTextCtrl with wxTE_RICH, using calls to wxTextCtrl::SetDefaultStyle() and wxTextCtrl::WriteText(). However, on my 3ghz ...
I know that a float isn't appropriate to store currency values because rounding errors. If there a standard way to represent money in C++? I've looked in the boost library and found nothing about it. In java, seems that BigInteger is the way but I couldn't find an equivalent in C++. I could write my own money class, but prefer not to do ...
Is there a way of changing/adding to the windows Open/Save common dialog to add extra functionality? At work we have an area on a server with hundreds of 'jobfolders'- just ordinary windows folders created/managed automatically by the database application to house information about a job (emails/scanned faxes/Word docs/Spreadsheets/Phot...
Since I have started using this site, I keep hearing about the Boost library. I am wondering what are some of the major benefits of the Boost library (hence why should I use it) and how portable is the Boost library? ...
What are some practical uses for the "Curiously Recurring Template Pattern"? The "counted class" example commonly shown just isn't a convincing example to me. ...
I enjoy developing algorithms using the STL, however, I have this recurring problem where my data sets are too large for the heap. I have been searching for drop-in replacements for STL containers and algorithms which are disk-backed, i.e. the data structures on stored on disk rather than the heap. A friend recently pointed me toward...
What does the following code do in C/C++? if ( blah(), 5) { //do something } ...
Hey all. Any one have any recommendations for a great MFC book that I can learn? I have background in .NET and C++. Thanks! ...
In a C++ Linux app, what is the simplest way to get the functionality that the Interlocked functions on Win32 provide? Specifically, a lightweight way to atomically increment or add 32 or 64 bit integers? ...
I have a C++ program representing a TCP header as a struct: #include "stdafx.h" /* TCP HEADER 0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Source Port ...
I'm trying to build a new .NET C++ project from scratch. I am planning to mix managed and unmanaged code in this project. this forum thread IDataObject : ambiguous symbol error answers a problem I've seen multiple times. Post #4 states "Move all 'using namespace XXXX' from .h to .cpp" this looks like a good idea but now in my header f...
We have a large C/C++ legacy source tree that has been around the block a few times. We expect there are a substantial number of methods no longer used. Is there a tool that can help us quickly identify the unused code? ...