register variable

Original address: https://www.cnblogs.com/tianyajuanke/archive/2012/04/25/2470002.html1, Vim ~/.VIMRC Enter the configuration fileIf you don't know where the VIMRC file is, you can use the: Scriptnames to viewSet Nu #行号Set tabstop=4 #一个tab为4个空格长度Set

RegisterA variable declared with register is called a register variable, which is stored directly in the register of the machine, if possible, but not for the four-bit compiler when the global When optimizations(global Optimization) is on, it makes

1. Why use volatile?The volatile keyword and the const counterpart in C + +, which are used to modify variables, are often used to establish language-level memory barrier. This is a description of the volatile modifier for BS in "the C + +

Comparison of C language Storage types, storage class scopes and survival domains, and scope of C language Variables The Storage types in C language include 'auto', 'extern', 'Register ', and 'static, the storage type indicates the memory space

32 keywords in C language and 32 keywords in C Language Auto: declare automatic variable short: declare short integer variable or function int: declare integer variable or function long: declare long integer variable or function float: declare

C language parameter change problem, C Language C ++ has the function overload method, so we can not determine the number of real parameters when calling it. In fact, C language can also be better! In stdio. h, we can see the prototype of the printf

(1) write a simple variable parameter C function Next we will discuss how to write a simple variable parameter C function.C functions use the following Macros in the program:Void va_start (va_list arg_ptr, prev_param ); Type va_arg (va_list arg_ptr,

Learn C language from the first C language program Learn about Keywords Understanding functions Comments C-Language execution process Identifier The hard and difficult point of C language learning Learn C language from

Auto: Default, automatically allocate space, automatically reclaim spaceRegister         1. &NBSP, register cpu the type accepted by the register, which usually means register The variable must be a single             value, and its length

Principleclasssmarty{ Public $url;//Store Template Catalogs Public $attr;//storing an array of temporary variables Public $left= "{"//left delimiterPublc$right="}"//right delimiter//image array to store variables (register variable)functionAssing

Whether you're writing a custom label or a filter, the first thing to do is create a template library (the basic structure that Django can import). Creating a template Library is a two-step walk: First, decide which Django application the template

Because often see volatile this keyword, think of themselves not very clear about this volatile, just know that it shows that variables are easy to change and prevent compiler optimization. So on the Internet to find some other friends of the

First, the practical "enhanced1 . variables in the C language must be defined at the beginning of the scope!! 2.in C + + , more emphasis is placed on the "practicality" of the language, and all variables can be defined when they need to be used. For

The so-called keyword is also called a reserved word. It is a type of identifier. The standard stipulates that it is the default type of the compiler. Therefore, users cannot use its same identifier to represent other things. Standard C has 32

C Language 32 Keywords First Category: Data type keywords A basic data type (5) void Declares that a function has no return value or no parameter, declares an untyped pointer, and explicitly discards the result of the

Recently, a key part of the C language algorithm needs to be implemented in assembly language. In Linux, AT&T assembly is basically used for Embedded Assembly. For example, AT&T assembly is used for Linux system startup. I have studied AT&T assembly

Session_decode and session_encode are vague:Bool session_decode (string data );Session_decode () decodes the session data in data, setting variablesStored in the session.Bool session_encode (void );Session_encode () returns a string with the

Data type keywordsBasic data Type (5)void : Declares that a function has no return value or no parameter, declares an untyped pointer, and explicitly discards the result of the operation.Char : character-type dataint : integral type datafloat :

  First, log on to the vro using the Super Terminal and set the fa0/1 IP address. R1 (config-if) # ip address 192.168.1.1 255.255.255.0 R1 (config-if) # no shutdown Set the IP address of the tftp server to 192.168.1.2/24   The IOS of the router is

1. Basic Concepts of keywords Words that are given special meaning by C language A, keyword feature : all lowercaseb, keywords in development will show a special colorThe compiler is strictly case-sensitiveThe. Keyword cannot be used