how to use define

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High-end tip: How to use #define to define variables

Introduction To define a variable in the source file that is related to the line number, it is too slow to manually enter each time. This article describes how to use macro definitions to define variables related to line numbers. For example, we

Use # define macros to facilitate Version Control

Reprinted from: Http://www.yonsm.net/read.php? 141 The version number may be used in many places in a VC project, such as the about dialog box and version resource. Changing these values one by one for each version is not only troublesome, but

C ++ should not use # define, but replace it with const, enum, and inline.

For example, the program file starts with the following # define statement. Copy codeThe Code is as follows: # define N 10 # Define PI 3.14 # Deprecision MAX 10000 # Define Heigth 6.65 ... ... If the program runs an error here, and there is an

C + + try not to use #define instead of using const, enum, inline replacement. _c language

For example: Here the program file starts with the following #define statement Copy Code code as follows: #define N 10 #define PI 3.14 #define MAX 10000 #define HEIGTH 6.65 ... ... Let's say the program is running

AngularJS View Details and sample code, angularjs sample code

AngularJS View Details and sample code, angularjs sample code AngularJS supports single-page applications with multiple views on a single page. AngularJS provides ng-view and ng-template commands and $ routeProvider services. Ng-view The ng-view tag

Variables $ _ SERVER, $ _ ENV, and define are confused about defining system parameters.

After reading some frameworks, many of them use define to define many system parameters at the system core entrance. However, we recently see that some of them are defined in $ _ SERVER and even $ _ ENV. Although all functions can be implemented, I

Pear: Use Phpdoc to easily build your pear document

For a developer, documents are always one of the most vexing things. Also, it is likely that you will take 2 different attitudes towards the document: When you use someone else's code base, the most desirable is its technical documentation,

SeaJS getting started tutorial series using SeaJS (ii) _ Seajs

This article mainly introduces SeaJS, a series of getting started tutorials, focuses on the use of SeaJS and the use of key methods. For more information, see Download and install To use SeaJS in a project, all you need to do is download sea. js

SeaJS getting started tutorial series using SeaJS (ii) _ Seajs

This article mainly introduces SeaJS, a series of getting started tutorials, focuses on the use of SeaJS and the use of key methods. For more information, see Download and install To use SeaJS in a project, all you need to do is download sea. js

Porting UCOS II

Porting UCOS II   To run μC/OS-ⅱ properly, the processor must meet the following requirements: 1. The C compiler of the processor can generate reusable code. 2. enable or disable the interrupt in C. 3. The processor supports interruption and can

C ++ breaks the access limit of Private Members

Source: access permission breakthrough Added some understanding. When writing code, we put the member data in the private access area according to the Conventions, and then access the data through corresponding functions. So what kind of code can

The difference between const and # define

I often encounter defining global constants when I brush a question. I usually use # define (probably because of the very little contact with the const reason)As usual, when we did 51nod1082 yesterday, the violence was defined most by # define. But

Php constant usage in the PHP Getting Started Tutorial

Constants are a very new data type in php. I will introduce some usage of PHP constants in detail for beginners. For more information, see. PHP constant define () function is used to define constants. once a constant is defined, it cannot be changed.

In Qt, the pure C ++ project is released as a dll method (detailed steps). qt detailed steps

In Qt, the pure C ++ project is released as a dll method (detailed steps). qt detailed steps Directory General Creation Method Export methods and call methods of common functions Methods and call methods for exporting classes and their member

Php constant usage in the PHP Getting Started Tutorial

PHP constantsThe define () function is used to define constants. Once a constant is defined, it cannot be changed or undefined.Example of defining constants: The code is as follows:Copy code Define ("CONSTANT", "Hello! ");Echo CONSTANT;?>

PL/SQL Usage tips

PL/SQL usage tipsEdit/undo Ctrl+zedit/redo shift+ctrl+zedit/pl/sql beautifier ctrl+w (Custom) Shift+home Select the cursor position to the beginning of the line Shift+end select the cursor position To the end of the line Ctrl+shift+home select the

The grammar style of C language and Code Writing specification guide _c language

C Code: #include int main (void) { printf ("That's right style\n"); return 0; } In a standard C language program, the most special one is the main function, and in the final analysis it is a function only because it has a special

C #-# define condition compilation,

C #-# define condition compilation, Introduction: C # pre-processor commands will never be converted into executable code commands, but will affect all aspects of the compilation process. Commonly used pre-processor Commands include # define, #

SeaJS_javascript in JavaScript modular Development

SeaJS is a JavaScript module loading framework that complies with CommonJS specifications. It can implement JavaScript modular development and loading mechanisms. This article introduces SeaJS, a JavaScript modular development framework. For more

The difference between const and define

1. When defining constants using const, only scalar initialization is used, and when you use define to define constants, we can use any form of expression to initialize constants; 2, we can use define in conditional expressions to define constants,

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