在C++中,基于以下如下我们通过以引用reference的形式传递变量. (1)To modify local variables of the caller function A reference(or pointer) allows called function to modify a local variable of the caller function. For example, consider te following example program where fun()
1.Programming Language Primitive Types primitive types:Any data types the compiler directly supports. Primitive types map directly to types existing in the Framework Class Library (FCL). use the FCL type names and completely avoid the primitive type
C++ 11加了许多新的功能.其中对C++性能和我们设计class的constructor或assignment可能产生重大影响的非rvalue reference莫属!我看了不少资料,能说清它的不多.下面我企图用简单的例子来说明,希望读者能够理解并应用这一重要的语言构造. 1.rvalue reference 是reference (即指针) 比如下面两条语句的语义完全一样: int &&p = 3; // line 1 const int &cp = 3
1.Optional and Named Parameters calls these methods can optionally not specify some of the arguments, thereby accepting the default values. when you call a method, you can specify arguments by using the name of their parameters. When you pass argumen
原地址 http://www.cplusplus.com/doc/tutorial/pointers/ Pointers In earlier chapters, variables have been explained as locations in the computer's memory which can be accessed by their identifier (their name). This way, the program does not need to care