C++

The const keyword is used in C + + to modify constants, which are summarized in two ways: variables and member functions.Variables: const can modify ordinary variables, pointers (arrays), and structs.1.const modification of common variables is the

Suppose there is such a class1 class AA 2 {3 Private : 4 int num; 5 string name; 6 Public : 7 AA (intint b); 8 }At this point, if a function of the outside (void display ()) wants to access the member variable of the name

C + + operator keyword (overloaded operator)Transferred from: http://blog.sina.com.cn/s/blog_4b3c1f950100kker.htmlOperator is a C + + keyword that is used in conjunction with an operator to represent an operator function that should be understood as

int represents an integer, it occupies 4 bytes in memory, the binary representation is 32 bits, the binary contains only 0 and 1, and its maximum value is all 1, but int issigned type, so the highest bit (the first bit on the left) to take out to do

embedded Linux C Language (11)--Static library functions and dynamic library functions First,Static link libraryStatic links a library is a collection of obj files, usually static links Library with ". A" as the suffix, the name format is generally

Previously wrote a "c language" a variety of ways to build a C language development environment on the Windows platform, and discussed how to use dev C + +, ECLIPSECDT, VisualStudio, Sublime Test, clion, etc. under Windows, ide/ The editor

First, the conclusion . The assignment of a non-reference type does not matter Const. Const references can point to const and non-Const. But non-const references can only point to non-Const. A pointer to a const that can point to

Data integrity DiscussionsWe have chosen the I/O multiplexing model as the system underlying I/O model. However, we do not specifically address the read and write problem, that is, in our reactor mode, how we read and write operations to ensure that

CMakeLists.txt Project (AAA) Add_library (AAA SHARED Aaa.cpp) add_executable (BBB bbb.cpp) target_link_libraries (BBB AAA) Aaa.h #pragma once#ifndef aaa_aaa_h#define aaa_aaa_h#endifclass father{ Private:public: int *fabonacci (int n);

For those of you who are accustomed to using C for development, you may be confused when you see the & symbols appearing in C + +, because this symbol represents the address-taking character, but in C + + it has a different purpose, mastering C + + &

To use function as object is a new thinking of program design. STL implements function object function by overloading the operator () function in the class, not only can carry on the various operation to the data in the container, but also can

C-language operatorsFirst, arithmetic operationsThere are 34 types of operators in C, including common subtraction operations.①. Addition: + can also indicate a plus sign②. Subtraction:-can also represent a minus sign③. Multiplication: *

Iterator.h1 #ifndef _iterator_h_2 #define_iterator_h_3 4 classIterator {5 Public:6 Virtual BOOLHas_next () =0;7 Virtual void*next () =0; 8 };9 #endifMenu.h1 #ifndef _menu_h_ 2 #define _menu_h_34class MENU {5public: 6 Virtual 0 ; 7

The C++14 standard is ISO/IEC 14882:2014 Information Technology-programming languages-the abbreviation for C + + [1]. Prior to the formal adoption of the standard, formerly known as C++1Y. The C++14 Standard Committee draft N3690 was published on

Pointers Misc Demo:The same function is called two times to perform different functions:1, basic operation, function allocated memory#include   #include   #include  int  Getcontentlen (Char *filename,char **buf,int *len) {         char *tmp =  (char*

C # time and timestamp turn 13 bits each/// ///convert C # datetime format to UNIX timestamp format/// /// Time /// Long Public Static LongConvertdatetimetoint (System.DateTime time) {System.DateTime startTime=

both virtual and abstract methods can be overridden by derived classes, what is the difference between them? 1. The virtual method must have an implementation section and provide options for the derived class to override the method. An abstract

Recently do a small functional requirements, using the queue, with a lot of problems, and now summed up, hoping to be able to help people in need.My requirements are simple, that is, multiple clients connected to one of my small data forwarding

ToLower convert uppercase to lowercase.Non-alphabetic characters do not make processing.This function is a bit special. He handles the characters rather than the strings.The so-called inability to handle strings does not mean that he cannot handle

Replication of complex linked lists and replication of complex linked lists Question: there is a complex linked list. Besides a m_pNext pointer pointing to the next node, there is also a m_pSibling pointing to any node or NULL in the linked list.