C++

STL is a generic programming (generic programming). Object-oriented programming focuses on the data aspect, whereas generic programming focuses on algorithms. The common denominator between them is abstraction and the creation of reusable code, and

#include #includestring>#include#includeSet>#include#include#include#includeintMain () {using namespacestd; COUT.SETF (Ios_base::left,ios_base::adjustfield); COUT.SETF (Ios_base::showpos); COUT.SETF (Ios_base::showpoint); Cout.precision (3);

Reference book: learn C from scratchSummary 1. Conditional operators and conditional expressions.   Conditional budget symbol is made by "? "and": "consists of three operands of the conditional operator. The first operand can say any type of

C++11 New Container 1:arrayThe array was first seen in boost:http://www.boost.org/doc/libs/1_61_0/doc/html/array.htmlIt was originally intended to provide a fixed-length array allocated on the stack, and the template algorithm in STL could be

Take an example of a function that calculates a harmonic average of two numbers. The harmonic mean of the two numbers is defined as the reciprocal of the reciprocal value of these two numbers, so the expression is:1.0 * x * Y/(x + y)If Y is a

c++11 new Syntax 1:auto keywordOne of the most useful features that c++11 adds is the Auto keyword.I wonder if you've ever written such a code:STD::MAPstring, std::vector > > > map;std:: Mapstring, std::vector > > >::iterator it = Map.begin ();Even

C + + provides a means of centralizing the reuse of code. The common inheritance introduced in the 13th chapter establishes is-a relationships so that derived classes can reuse the code of the base class. Private inheritance and protection

1. Array as function parameterIn C, an array is a parameter of a function that is degraded to a pointer. when an array is passed as a parameter to a function, it is passed a pointer instead of an array , passing the address of the first element of

1. How to convert a decimal number string into a hexadecimal number string in C #Decimal Turn binaryConsole.WriteLine ("Decimal 166 binary representation:" +convert.tostring (166, 2));Decimal Turn octalConsole.WriteLine ("Octal Representation of

I. Overview of C languageThe birth of the 1.C languageFeatures of the 2.C language3. Use of embedded CIi. data Types for C1. What is a data type2. Byte length of each data type and byte length of pointer variable3. Characteristics of variables and

//1. Control memory allocation://A: Some applications have special requirements for memory allocation, so we cannot apply the standard memory management mechanism directly to these programs. They often require custom memory allocation details, such

6.1 function and scale design of functionsThe function should be short and beautiful, and do only one thing. Do not design multi-purpose functions, multi-function set in a function, it is likely to make the function of understanding, testing,

Sleep function:Function: Execution hangs for a period of timeUsage: unsigned sleep (unsigned seconds);Attention:Used in VC with top file # # under Linux, the GCC compiler uses a header file that differs depending on the GCC version # include In the

IntroductionIn the process of programming, we always want to design the program is seamless, but this is almost impossible. Even if the program is compiled and implemented with the required functionality, it does not mean that the program is perfect,

//function Template definition--data type do parameters#include using namespacestd;/*function Template Declaration 1. A function template definition consists of a template description and a function definition, and a template description corresponds

is related to the machine word length and compiler:Therefore, the width of the int,long int,short int may vary depending on the compiler. But there are several ironclad principles (Ansi/iso):1 sizeof (short int) 2 sizeof (int) 3 short int should be

Ladies and gentlemen, crossing, the last time we were talking about the example of closing the buffer function in the terminal, let's go on to this example. Gossip Hugh, words return to the positive. Let's talk C chestnuts together!Crossing, we

Learn to read a document step-by1 //readFile.cpp: Defines the entry point of the console application. 2 3 4#include"stdafx.h"5#include 6#include 7#include string>8 using namespacestd;9 Ten //extension: File copy One voidFileCopy

Understanding of deep copy and light copy 1. The two copies are mainly used for copying objects! 2. Differences No pointer: There is no difference between deep copy and light copy; Pointer: Shallow copy: the default copy function of the object.

Summary of MFC view switch and mfc View Switching between views Multi-view switching of a single document is an old and difficult problem I encountered in learning MFC. Today, I finally cracked it one by one. In my opinion, view switching is divided