Cool C language skills

C language often makes people think that what they can express is very limited. It does not have advanced features such as Level 1 Functions and pattern matching. However, C is very simple and still has some very useful syntax skills and functions,

Quick Start to Hadoop HBase

This article solves the problem of standlone running HBase. You can quickly learn about the basic Shell commands of HBase. Step 1 prepare the softwareMachine environment: Ubuntu11.10 + JDK1.6Software: hbase-0.92.1.tar.gzMy username is clMy machine

Encoding and cropping Algorithm

Encoding and cropping AlgorithmDraw a window with any color, draw a line segment with a color, and crop the line segment using the encoding cropping algorithm. The cropping process must be demonstrated. The image before cropping should be drawn.

Why should I use the debug macro in C language programs?

This article only provides an idea, a kind of personal experience, designed to use a very vulgar and relatively grounded way, prompting cainiao, why, and how to introduce debug Macros in C language programs, develop and maintain good habits. Asked

Things about the main () function that You don't necessarily know

In a variety of C language books, we can see a variety of main () function writing, it is almost confusing, this is the case? There are two main reasons: one is that with the development and evolution of the C language, the writing of the main ()

The C programming language Reading Note 1

I have read the famous "the C programming language". As I have heard, I have a thorough explanation of the basics and a typical case. I do not know much about the C language. Summary of the reading results (some of the original book's unclear

List of operators in C Language

  Priority Operator Name or meaning Usage Integration direction Description 1 [] Array subscript Array name [constant expression] Left to right   () Parentheses (Expression)/function

Ten top C language resources help you become a good programmer

Translator's words: it takes 1.1 drops to learn the C language and sink your mind to find a quiet place, bring a cup of coffee, and taste her in the rich fragrance. (By Boatman Yang) People usually think that computer programming is annoying, but

Chapter 3 C language statement analysis

3.1 Only the compiler will like the syntax The Declaration syntax (Declaration model) of C language is obscure and easily becomes a barrier for programmers. It is precisely because of the clumsy behavior in the combination type that C language

Index search (index search, block search) C language implementation

1. Basic Concepts Index search is also called hierarchical search. The basic idea of index storage is: first, divide a set or linear table (which corresponds to the primary table) into several logical sub-tables according to certain functional

Qt screen capture

The software implements drag screenshot and top screenshot results, and finally copies them to the clipboard. It can be used for data comparison or other scenarios. The software running process is: shortcut key-screen capture-> pin-> copy the result.

Basic data types and operators in C Language

Basic Data Types in C LanguageChar, int, float, double1>CharCharacter)The character enclosed in single quotes is char; ''contains characters, and" "contains strings. For example, char c = 'a ';Characters are displayed in graphs, but are stored in an

2 curses library IO processing-color attribute

2.7 color attributes ================== 2.7.1 Color Description --------------- * The curses library uses the RGB method to represent a color. * The default colors are: Color index number --------------- + -------- COLOR_BLACK 0 COLOR_RED

3. curses Database WINDOW processing

3. curses Database WINDOW processing ~~~~~~~~~~~~~~~~~~~~~~~~~~~ 3.1 What is a window ==================== * A window is an area on the screen. You can perform various outputs and operations on it. * Windows can be anywhere on the standard screen

Learning C ++ & lt; 1 & gt; parameter transfer from disassembly -- constant

Preface There are already a lot of books in this field, but most of them focus on reverse analysis. I wrote this series to better understand some concepts in C ++ through disassembly. I will briefly explain the Assembly commands that appear for the

Code: Blocks build a standard C, C ++ integrated development environment

Code: Blocks build a standard C, C ++ integrated development environmentHttp://www.codeblocks.org from the official advertising: The open source, cross platform, free C ++ IDE.

How to Use Amop in VC6

Amop is an open-source automatic Mock tool (thanks to the original author and we have developed such a useful framework). It is a Mock implemented using a virtual function table, therefore, the original author of Mock that only applies to virtual

OHCI-based USB Host & mdash; overall architecture

In our system, the USB host is used to read and write the USB flash disk. Therefore, the design and architecture fully focus on this purpose. The entire system involves a lot of content. According to the general principles of embedded system

[Good Habit of programming] improve program execution efficiency by using programming language features

Using the features of the programming language can not only simplify the program, but also improve the execution efficiency of the program. First, let's look at an example program that uses sizeof () to improve program efficiency. Figure 1 shows the

Two conversion methods for multi-character and wide-character in Windows

Multi-character and wide character conversion methods are often used in Windows. Therefore, multi-character MultiChar is also an ANSI encoding method, while wide character WideChar is also a Unicode encoding method. The first two traditional

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