If you want to run code on many platforms, go for Posix Threads. They are available almost everywhere and are quite mature. On the other hand if you only use Linux/gcc std::thread is perfectly fine – it has a higher abstraction level, a really good interface and plays nicely with other C++11 classes. The C++11 … Read more
C++23 Update We now finally have std::print as a way to use std::format for output directly: #include <print> #include <string> int main() { // … std::print(“Follow this command: {}”, myString); // … } This combines the best of both approaches. Original Answer It’s compiling because printf isn’t type safe, since it uses variable arguments in … Read more
Include the algorithm header. That’s why there is a error. #include <algorithm>
The standard method of logging (in my experience) is to use either the stdout or stderr streams. In C++ to use these you would need to include iostream, and use as below: #include <iostream> int main(int argc, char* argv[]) { using std::cout; using std::cerr; using std::endl; cout << “Output message” << endl; cerr << “Error … Read more
although you should put the variable into a managed pointer on it’s creation to do it from an existing pointer. int *a=new int; boost::shared_ptr<int> a_ptr(a); That said you most definitely do not want to be putting stack variables into shared_ptr BAD THINGS WILL HAPPEN If for some reason a function takes shared_ptr and you only … Read more
You cannot store arrays in vectors (or in any other standard library container). The things that standard library containers store must be copyable and assignable, and arrays are neither of these. If you really need to put an array in a vector (and you probably don’t – using a vector of vectors or a vector … Read more
Basically your question boils down to “is it reasonable to have [free library xyz] as a dependency for a C++ open source project.” Now consider the following quote from Stroustrup and the answer is really a no-brainer: Without a good library, most interesting tasks are hard to do in C++; but given a good library, … Read more
To literally hide/show the console window on demand, you could use the following functions: It’s possible to hide/show the console by using ShowWindow. GetConsoleWindow retrieves the window handle used by the console. IsWindowVisible can be used to checked if a window (in that case the console) is visible or not. #include <Windows.h> void HideConsole() { … Read more
You should call GetFileSizeEx which is easier to use than the older GetFileSize. You will need to open the file by calling CreateFile but that’s a cheap operation. Your assumption that opening a file is expensive, even a 12GB file, is false. You could use the following function to get the job done: __int64 FileSize(const … Read more
tinyfiledialogs offers many modal dialogs and popup notifications (both for graphic and console modes). It is a cross-platform single C/C++ file (+ header) to add to your C or C++ project. It aims to be extremely easy to use, has no init, no main loop, and no external dependencies. It is used by hundreds of … Read more