C++

1.Linux under the first C program, console print a word.1VI first.c//Linux New File2 3#include 4 5 intMain () {6printf"Welcome to Linux, this is the first C program!"); 7 return 0;8 }9 TenCompile; Gcc-o First first.c//Linux compiled files

1, problem descriptionThere are classes as followsclass a_class{ voidconst { ... }};In this case, what if you want to modify the member variables of the class?2, analysisIn C + +, when a class's data member is mutable , it is

Fast PowerAs the name implies, it is a fast calculation of the number of times the power. Its time complexity is O (log?) n), the efficiency is greatly improved compared with the simple O (n).Principle of fast power realizationThe principle of fast

In order to limit the scope of a constant to class, you must make it a member of class, and to make sure that there is only one entity for this constant, you must make it a static member:Class Gameplayer{Private:staticconst int number = 5;

C + + read Excel file1 Creating MFC programs (Take vs2013 as an example)Click here to complete the direct.2 adding classes to read Excel files2.1 Opening the Class Wizard2.2 Adding classeswill be _application , _workbook , _worksheet , Workbooks ,

Single source is the shortest circuit, the complexity is O (N²), and the heap is optimized O (NLOGN). The basic idea is greed, each time to join a current closest point, can prove each time the nearest point is the shortest path at the moment.

First on the code:void* __thread_new_proc (void *p){((Gamethread *) p)->run ();return 0;}Gamethread::gamethread (){M_bstop = false;}Gamethread::~gamethread (){}int Gamethread::start (){pthread_attr_t attr;Pthread_attr_init

Recently, Effectvie C + + carefully read the side, very amazing the power and charm of C + +. Recently will be the recent reading experience and reading notes in this, must find use, if the summary of what is wrong, welcome criticism:Now only the

DecltypeSimilar to the sizeof operator, Decltype does not need to evaluate its operands. Roughly speaking, Decltype (e) is deduced as follows before returning a type:1. If the expression e points to a local variable, namespace scope variable, static

Background requirementsWe need to call Java code in the JNI C code. Implementation principle: Use the reflective pretext provided by JNI to reflect the Java method and make the call.The key methods of JNI are explained.1. In the same class, call

C language, I take you to get started ...It doesn't matter if you don't get started ... Do not think that learning C will be a lot of math knowledge!Most important, you have to understand how fun C is.Make a Game ...The rules of the game refer to

The main talk1. In general, the compiler creates default constructors for classes, copy constructors, and copy assignment functions2. When performing the default copy construction/copy assignment function, if the member has its own copy Construction/

Projects usually produce an EXE or DLL.Projects can depend on each other; During the build process, the Visual C + + environment checks for dependencies between each project and each project.Each project has a core source code, and depending on the

1#include 2 using namespacestd;3 //using a template function to calculate an expression4templateclassType>5 type ABC (type A,type b,type c)6 {7 returna+b+C;8 }9 //evaluating an expression with reference parameter pointersTentemplateclassType>

1 overviewBoth C and C + + do not have inputs and outputs built into the language, and C + + puts the input and output solutions in the class library (classes defined in headers iostream and FStream)C + + programs treat input and output as byte

ObjectiveCommissioned:A delegate is a type that holds a reference to a method in an object and is also a type-safe function pointer.Or a delegate can be seen as a data type that represents a function, similar to a function pointer.The event is a

I. Coding rulesThe idea of BASE64 encoding is to re-encode the data using 64 basic ASCII characters. It splits the data that needs to be encoded into a byte array. A group of 3 bytes. The 24-bit data is sorted sequentially, and the 24 bits of data

Before the university has learned C + +, forget almost, the former saw some of the "[Chinese version of]c language programming: A comprehensive C language introductory course (3rd edition)", think you can directly start to see "Objective-c Basic

Program C demonstrates the process of producing zombie processes, and program c demonstrates zombie processes.Copy the following online description of the zombie process:Zombie Process: A process uses fork to create a child process. If the child

Six major STL components-Allocator (memory allocation, profound things) and six stl SGI has designed a dual-layer configurator. The first-level configurator directly uses malloc () and free (). The second-level configurator uses different policies