C + + Read TXT file

1. Progressive read-Invoid readtxt (string file) { ifstream infile; Infile.open (File.data ()); // assert (Infile.is_open ()); // string s; while (Getline (infile,s)) { coutendl; } Infile.close ();

Four types of coercion type conversions and an interesting example of C + +

It is also the programmer interview Treasure, is abused again. This is dynamic_cast. Yes, check the information and summarize it.C + + has four kinds of coercion type conversion, namely static_cast, dynamic_cast, reinterpret_cast, const_cast, these

adjacency table representation and depth and breadth search implementation based on C + + STL graph

Based on C + + STL graph adjacency Table representation and depth, breadth search implementation, the study of graph theory is helpful, the code is as follows:#include #include #include using namespace std; #define MAX (A, B) ((a) > (b)? (a):

C + + Writes the callback function in the class

Be aware of the difference between the member functions of Class C + + and the general C function. The C + + class takes the This rule transfer function. In using the member function of a class as a callback function, the member function is required

Three forms of the C language main function

in the C language, Main () there are three forms of the function. 1 , no parameters#include int main (void) { printf ("Hello world!\n"); return 0;}2 , there are two parameters The first parameter is the integral type ARGC argv ,

C + + STL algorithm series unique

The unique function of the class attribute algorithm is to " delete" all adjacent repeating elements from the input sequence.The algorithm removes adjacent repeating elements, rearranges the elements in the input range, and returns an iterator (the

C + + essay (III.)

1.SStud Structural BodySstud SS =s2;//Stack Internal copy constructionSstud sss (s2);//copy construction in stackSstud *ps = new Sstud (s2);//copy construction inside the heapCopy constructor:Only one of the constructor parameters is Sstud &ss

Stealing the Microsoft Division to learn MFC: And how C + + supports reflection

If you ask an IT person, "how does C + + implement Java-like reflection?" "And what will the result be?" ! @#¥%......&*, it is estimated that most people will have to think a little bit, or just say "C + + does not support reflection!" ”。Yes, the C +

D-Language and C-language mutual invocation

Many languages can be implemented with the C language of each other, but I think the D language is better, d and C compatibility is binary compatible, not on the source of compatibility, that is, the compiler binary files can be linked to each other.

Table (DataTable and DataGridView improved) on the interface of C #

:Enter the information in the TextBox control and click AddAppearGo on:Code (no CSDN Insert code function is inserted code add and delete changes can not be selected, especially trouble, so the following code may look a bit messy):Create Groove form

[C # Reference] character encoding

"Every software developer must have at least the knowledge of Unicode and character sets (no exceptions)," says Microsoft's fart Joel (the bull who wrote "Joel says Software"), and I'm often bothered by a lot of questions about character set

C # Simple phone number input verification

public static int haoping (string x)//class inside, function name random, need to pass in argument to string type{//To determine the input of the phone number, the first is 1 and the total length is 11Returns 1 indicates that the fill number is

C # Parallel and TaskFactory to perform parallel tasks

This article is reproduced from http://www.cnblogs.com/icyJ/p/Parallel_TaskFactory.htmlvery powerful post.Barrier _bar;int_maxlength = -, _maxchannel =2;//up to 2 channels at the same time, up to 20 data per channelBOOL_iscancel =false;Private

C # program self-removal

Share a little trick to implement the self-deletion feature of C # version exe.The code is as follows:Process process = new process ();Thread.CurrentThread.Priority = Threadpriority.highest;Process.getcurrentprocess (). PriorityClass =

Beware of the deadlock caused by await in C # 5.0 and Async mode

You don't always notice when you use the await and async keywords in C # 5.0. Until today, when debugging an ASP. NET project, it is found that after calling a method that is declared async, the program always gets stuck, even if the task task in

C # Shallow copy and deep copy

Shallow copy: A new object reference address is copied to the object (it only gives a name to an object, so the corresponding property of the original object changes when a property of the copy is changed).The definition of a shallow copy-assigns

C # Delegate

This blog will share with you the delegates in C #.What is a delegate?Let's start by thinking about the question, if I want to write a person class now, it's defined as follows:public Class person{public string Name {get ; set ; } public int

Diary of C-operator precedence and binding direction

#: Equal priority operators, the order of operations is determined by the binding direction; different precedence operators, the order of operations from high to low priority. The union direction is mostly left-to-right, but the "single-item"

C ++ chain inheritance

C ++ chain inheritance Inheritance is no stranger to everyone who learns C ++. In the development of Qt, if you need to support the move operation on a borderless interface, you have to implement it by inheriting and rewriting virtual functions.

Poj 1284 Primitive Roots evaluate the number of prime element

Poj 1284 Primitive Roots evaluate the number of prime element Question: Returns the odd prime number p to the original root of p. Analysis: Phi (P-1), number theory has a specific proof. Code:   // Poj 1284 # include Using namespace std;

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