Hi, I have one map within one header file class: class One { // code typedef map<string, int> MapStrToInt; inline MapStrToInt& GetDetails(unsigned long index) { return pData[index]; } // populate pData.... private: MapStrToInt *pData; }; And a second class which implements another map and wants to get the first ...
i was trying to call a static function of class using scope resolution operator, the way to access static function but still generating error. what are the possibilities. ...
I've managed to get through my C++ game programming career so far virtually never touching exceptions but recently I've been working on a project with the Ogre engine and I'm trying to learn properly. I've found a lot of good questions and answers here on the general usage of C++ exceptions but I'd like to get some outside opinions from ...
Hi, Here is the problem: I want to show a progress bar (just as a text like "Remaining 35%...") during a C++ function execution. I've done the first part which is the progress bar but the problem is how do I show the progress bar during the other functions execution? I just want to start showing the bar when execution enters a specific ...
I have these C++ classes: class Base { protected: static int method() { static int x = 0; return x++; } }; class A : public Base { }; class B : public Base { }; Will the x static variable be shared among A and B, or will each one of them have it's own independent x variable (which is what I want)? ...
I have a bunch of module tests written in CPPunit with some mocks created by hand. I am looking for a way to migrate them to GoogleTest as smoothly as possible. Have you tried such an operation? What was the effort needed? ...
I have a function which creates an array of Maps: map<string, int> *pMap And a function which writes maps to the array: int iAddMap(map<string, int> mapToAdd, map<string, int> *m, int i) { m = &(pMap[i]); memcpy(m, mapToAdd, sizeof(map<string, int>)); } And a function to get maps from the array map<string, int>& getMap(int...
i am developing a notepad ++ plugin, am using a propertysheet with tabs as my dialog so far i have managed to show the dialog however when i move the dialog notepad freezes i.e. it stops responding, even the plugin stops responding you can get the source-code here (https://sourceforge.net/projects/notepadpluging/files/npp%20tab%20plug...
I have always been of the belief that if a method can throw an exception then it is reckless not to protect this call with a meaningful try block. I just posted 'You should ALWAYS wrap calls that can throw in try, catch blocks.' to this question and was told that it was 'remarkably bad advice' - I'd like to understand why. Thanks! ...
How would I do to extend a template class, for example vector? The below code does not work. The compiler whines about 'Vector' not being a template. template <typename T> class Vector<T> : public std::vector<T> { public: void DoSomething() { // ... } }; ...
So I have a function in unmanaged c++ that gets called when some text happens to have "arrived": #using <MyParser.dll> ... void dump_body(const unsigned char *Body, int BodyLen) { // Need to pass the body to DumpBody, but as what type? ... MyParser::Parser::DumpBody(???); } DumpBody is a static function defined in a C# DLL t...
Here is a boost example: typedef boost::multi_array<double, 1> array_type; typedef array_type::index index; array_type A(boost::extents[100]); for(index i = 0; i != A.size(); ++i) { A[i] = (double)i; } // creating view array_type::index_gen indices; typedef boost::multi_array_types::index_range range; array_...
I have a question about quick sort algorithm. I implement quick sort algorithm and play it. The elements in initial unsorted array are random numbers chosen from certain range. I find the range of random number effects the running time. For example, the running time for 1, 000, 000 random number chosen from the range (1 - 2000) takes 4...
I'm trying to write a Windows Explorer thumbnail handler for our custom file type. I've got this working fine for the preview pane, but am having trouble getting it to work for the thumbnails. Windows doesn't even seem to be trying to call the DllGetClassObject entry point. Before I continue, note that I'm using Windows 7 and unmanage...
I've seen in WPF where you can bind control values to properties of other controls. How is that binding accomplished in C++? For example, if I have a class called Car and a guage control called RPM, how do I tie the value of RPM to the member variable Car.RPM, so that when Car.RPM changes, it is automatically (as in without a specific u...
What is the difference between the WINAPI SetLastError() and the C++ keyword throw? For example, are SetLastError(5); and throw 5; the same? ...
Hey, I've been attempting to write a client/server app with boost now, so far it sends and receives but I can't seem to just read X bytes into a vector. If I use the following code vector<uint8_t> buf; for (;;) { buf.resize(4); boost::system::error_code error; size_t len = socket.read_some(boost::asio::buffer(buf), error); if ...
MSVC's "secure" sprintf funcions have a template version that 'knows' the size of the target buffer. However, this code happily paints 567890 over the stack after the end of bytes... char bytes[5]; _snprintf_s( bytes, _TRUNCATE, "%s", "1234567890" ); Any idea what I do wrong, or is this a known bug? (I'm working in VS2005 - didn't t...
Hello, I would like to define inside a class a constant which value is the maximum possible int. Something like this: class A { ... static const int ERROR_VALUE = std::numeric_limits<int>::max(); ... } This declaration fails to compile with the following message: numeric.cpp:8: error: 'std::numeric_limits::max()' cann...
Hey, I've written a function to copy any variable type into a byte vector, however whenever I insert something it gets inserted in reverse. Here's the code. template <class Type> void Packet::copyToByte(Type input, vector<uint8_t>&output) { copy((uint8_t*) &input, ((uint8_t*) &input) + sizeof(Type), back_inserter(output)); } Now ...