In C + +:
(1) The Register keyword cannot define a variable in the global, or it will be prompted as an incorrect storage class.
(2) when the Register keyword is declared in a local scope, the address can be taken with the & operator, and once the
Original: The role of the keyword auto, static, register, const, volatile, extern in C languageKeyword auto, static, register, const, volatile, externThese keywords are basic knowledge of C + +, I have organized a bit, I hope to be useful to the
The advantage of the Objective-c language is that we are more flexible when writing code, such as we can forward the message to the object we want, or swap the implementation of a method at random. This feature means that objective-c requires not
VS build lua development environment and LuaBridge register c ++ class (cocos2dx project) (1), luabridgecocos2dx
Because the project uses Lua development and has recently studied lua, we are preparing to build a lua development environment under.
The attributes of variables and functions include the data type and data storage class. The storage class index data is stored in memory (static and dynamic), including auto, static, register, and extern.
Memory. Specifically, memory is divided
Recently started Orangepi Zero piece, the program needs to use the board's own LED lights, on-line a check, have to say that OPI support and Raspberry Pi can not compare. Oneself groped for a moment, realizes the simple Gpio control method, the
The variables in C language are divided into four categories, respectively
1.auto Automatic variable
2.static Static Storage allocation variable (also divided into internal static and external static)
3.extern whole variable (for external variable
In this article we register 2 classes to test the use of the Luabridge, before we begin, we use C + + to invoke the LUA function on the basis of the previous article. We add a Main.lua file to the resource folder. The LUA code is as follows:1
C + + keyword Static,register,const,volatile,extern
Static variables are scoped to a file, space is allocated at the beginning of the program, Space is freed at the end, default is initialized to 0, and its value can be changed when used.
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