Suppose I have two C++ classes: 13 Answers 13 ...

... can do std::string::clear to get a pointer to the member function, but in C++03, Days::Sunday is invalid. (Which is sad). This is because C++ is (somewhat) backwards compatable with C, and C had no namespaces, so enumerations had to be in the global namespace. So the syntax is simply: enum Days...

...mped into a realization/implementation of the Singleton design pattern for C++. It has looked like this (I have adopted it from the real life example): ...

... The MSVCR100.dll file is part of the Microsoft Visual C++, redistributables. You can install them and see if this solves your problem. After you install the above check if your wamp installation is correctly setup. Search for "my wamp icon stays orange" posts. UPDATE 2019 W...

... C++ style casts are checked by the compiler. C style casts aren't and can fail at runtime. Also, c++ style casts can be searched for easily, whereas it's really hard to search for c style casts. Another big benefit is that...

C++中判断文件、目录是否存在的几种方法在我们平时的编程时，经常需要判断文件或者目录是否存在，相对来说判断文件的存在性比较简单，目录则比较复杂。下面就详细的介绍几种方法。...在我们平时的编程时，经常需要判断...

什么是STL？c++标准库和STL的关系标准模板库（英文：Standard Template Library)缩写STL，是C++标准程序库的一部分。其中包含4个组件，分别为算法、容器、函数、迭代器。...标准模板库（英文：Standard Template Library) 缩写 STL，是C++标准...

通过系统菜单灰掉： //获得系统菜单 CMenu *pMenu = GetSystemMenu(false); //获得关闭按钮ID UINT ID = pMenu->GetMenuItemID(pMenu->GetMenuItemCount()-1); //使关闭按钮无效 pMenu->EnableMenuItem(ID,MF_GRAYED);复制代码启用： //获得系统菜单 CMenu *pMenu = G...

【解决】C、C++混合编译link失败问题c_cpp_mixed_compileC、C++混合编译时，C头文件不加 extern "C"，函数按照C++编译会改变函数名称，导致link时报undefined reference to `xxx` 的 错误。加 extern "C" 解决，但是直接加的话 C、C++混合编译时，C...

C++ SpinLock 自旋锁的代码实现（全网最简略的方式）cpp_spinlock1、最简单的一种，来自《C++并发编程实战》第5章 C++内存模型和原子类型操作： include <iostream> include <atomic> include <thread> include <vector> include <unistd h 1、最简单的一种，...