scope resolution operator in c

http://www.cnblogs.com/wolf-lifeng/p/3156936.html2.3 Global Scope 2.3.1 OverviewThe global scope is the largest namespace scope, unlike the user-defined namespace scope, where the global scope does not need to be defined, and it naturally exists in

C + + Primer learning note _26_ operator overloading and conversion (1)--overload/non-overloaded operator, member function mode overload, Friend function mode overloadIntroduction:Use operator overloading wisely to make the use of class types as

The so-called overloading, is to give new meaning. function overloading allows a function name to have multiple functions and perform different operations under different circumstances. Operator overloading (Operator overloading) is also a reason

JSIn the scope, we all know, divided into global scope and local scope, there is no block-level scope, it sounds very simple, but whether the scope can have a deep understanding of the JS code logic to write the success rate, BUG the ability to

In C ++, each command in the command system has a C ++ operator, which indicates the nature of the operation that the command should perform, different commands are represented by different codes of the operator field. Each encoding represents an

Please do not reprint this article, please do not re-publish in any form, publish this article, please delete it within 24 hours of downloading this article, prohibit the use of this article for commercial purposes. 3 Basic Concepts

A type conversion operator is a special class member function that defines a transformation that converts a class type value to another type value. The conversion operator is declared in the class definition body, followed by the target type of the

In the previous sections we talked about data types, functions, code Execution order, and some ways to add simple functions.In this section we will focus on operators. Includes the meaning of operators and the concept of precedenceIn the C language,

The rules for operator overloading are as follows:1. The operators in C + + are all overloaded except for a few, and can only overload the operators already in C + +.2. The precedence and binding of operators after overloading will not change3,

Which operators cannot be overloaded . ?:::. * sizeof for some historical reasons,?: cannot be overloaded. If Overload expr1? EXPR2:EXPR3, there is no guarantee that only one of the EXPR2 or EXPR3 is executed. sizeof is an inline operator, and