I have a problem that sscanf solves (extracting things from a string). I don't like sscanf though since it's not type-safe and is old and horrible. I want to be clever and use some more modern parts of the C++ standard library. What should I use instead? ...
Can anyone please tell me that which type of sorting technique (bubble, insertion, selection, quick, merge, count...) is implemented in the std::sort() function defined in the <algorithm> header file in C++? ...
I spent some time removing all the uninfluent code and here is my problem. --- File.h --- #include <fstream> #include <string> template <typename Element> class DataOutput : public std::basic_ofstream<Element> { public: DataOutput(const std::string &strPath, bool bAppend, bool bBinary) : std::basic_ofstream<Element>( s...
How can I use a std::valarray to store/manipulate a 2D array? I'd like to see an example of a 2D array with elements accessed by row/column indices. Something like this pseudo code: matrix(i,j) = 42; An example of how to initialize such an array would also be nice. N.B.: I'm already aware of Boost.MultiArray, Boost.uBlas, and Blitz++...
If I'd like to know how a function written in like standard C++ library work (not just the MSDN description). I mean how does it allocate, manage, deallocate memory and return you the result. where or what do you need to know to understand that? ...
In an embedded program I have a screen object that needs to manage a list of items to display. The initial list of items will be pulled from a simple DB on screen load and the list will be updated via "Add" and "Remove" events. This list needs to be sorted according to certain criteria. I am looking of a container class that can help me ...
I'm relatively new to C++ and I'm still getting to grips with the C++ Standard Library. To help transition from C, I want to format a std::string using printf-style formatters. I realise stringstream is a more type-safe approach, but I find myself finding printf-style much easier to read and deal with (at least, for the time being). This...
A large amount of functionality is duplicated between standard c++ and Qt. At some point it seems logical but many times it looks foolish. Like I feel like doing a new programming language, learning things which I already know. e.g. using QFile. Also if I do it all Qt way and suppose now I want to move out of Qt framework it will be too...
std::istream has the prototype istream& read (char* s, streamsize n) the actual number of bytes read should be gotten by calling istream::gcount(), also the validity of the istream can be known from ios::good. I was discussing another stream class' implementation I was trying to write with a colleague of mine, where I was saying I might...