C++

The function of the # in a macro is to string the macro arguments that follow it (stringizing operator), simply by adding a double quote to the left and right of the macro variable it refers to.The following two statements are equivalent, as defined

650) this.width=650; "src=" Http://s1.51cto.com/wyfs02/M01/87/F6/wKioL1flKQ7w2SiCAAAkxuwjTUQ889.gif "title=" Curl.gif "alt=" Wkiol1flkq7w2sicaaakxuwjtuq889.gif "/>" This article declined to reprint, Original from

C + + Reference detailed Reference: is an alias of a variable (the target), and the operation of the reference is exactly the same as the direct operation on the variable.Declarative method of Reference: type identifier & reference name =

A bitwise OR combination of permission strings was encountered in the project today:First, each permission number is 2 of the n-th numbersuch as: k1=2; Add tok2=4; Deletek3=8; Modify...This defines the number of functional permissions that need to

1. Understanding implicit interfaces and compile-time polymorphismFor the template parameter, the interface is implicit, based on the constraint of the valid expressionCompiler polymorphism: templates function with different template parameters

1. Execution of the subclass constructor:Executes the constructor of the parent class first, executes the constructor of the member object, and finally executes its own constructor.When multiple classes are inherited, the constructors are executed

These days suddenly interested in the association process, so that they achieved a, the code on GitHub: Https://github.com/adinosaur/CoroThe process is a non-preemptive thread of user space, which is mainly used to solve the problem of waiting for a

Need to include library files#include (1) Ofstream: write operation, output file class;(2) Ifstream: read operation, input file class;(3) FStream: A file class that can read and write at the same time.Generally use ofstream and ifstream more

A classmate said, "Teacher, I run the following code, the results of an error"#include int main () {char c, int b;return 0;} The result of the error is:--------------------configuration:test-win32 Debug--------------------compiling...demo.cd:\ccode\

C + + C #=====================================WORD ushortDWORD UINTUCHAR Int/byte can be replaced in most cases using int, and if strict alignment is required, it should be used Bytebyteuchar* string/intptrunsigned char* [MarshalAs

First, IntroductionAutoCAD is currently the most powerful drawing software in the world. In the surveying and mapping industry, using AutoCAD Direct drawing, or AutoCAD for the platform to develop a variety of drawing software to draw, greatly

Escape character Meaning ASCII code (16/10 binary) \o Null character (NULL) 00h/0 \ n Line Break (LF) 0ah/10 \ r Carriage return (CR) 0dh/13 \ t

Source Very simple C language code, the function is to exchange two number:1 #include 23void swap (intint * b) { 4 *a = *a + *b-(*b = *a); 5 return ; 6 }Assembly Code Parsing executed in the GCC compilation environment, the

Http://www.cnblogs.com/BlueTzar/articles/1223313.htmlFor normal types of objects, replication between them is simple, for example:int a=88;int b=a;And the class object is different from ordinary object, the inner structure of class object is

First, a piece of crap, thanks to my compilation Foundation (Foundation Foundation) solid, otherwise this problem really disgusting to meThe point because there are special requirements, you need to write an interface-like function, but because of

Talk about expression tree-the trees sequence of expressionsSimply say an expression tree.DirectoryIntroducedExpression trees represent code in a tree-like structure, where each node is an expression, such as a method call and a two-dollar operation

The following code:1 Public class Age2 {3 4 Private intAgenum;5 6 Public intAgenum {7 Get{ 8 return This. Agenum;9 }Ten One Set{ A This. Agenum =value; -

These days to see the 13th chapter of the Code encyclopedia---Uncommon data types, which explain the C language of the struct and the interpretation of the pointer, Lenovo to the previous read about the C language in the stuct length of the article,

Main reference : "Deep Exploration embedded operating System" section 5.4??Why embed assembly language?Switch CPU interrupt,Read some special registers of the CPU,Functions such as setting up CPU mode cannot be implemented in C (because C is a

Windos_Hook _ dynamic link library-CreateDllDemo -- Lesson 1 _ Po school,-createdlldemo_po   Lesson 1: From _ Po SchoolDynamic Link Library Extern "C" // convert the c ++ function to c (that is, the function name is not