C++

Original link: http://zhidao.baidu.com/link?url=16TEzhom2Nr8x1_ 2utrp-e2pgzrgs5nw5ywtrx2xlhbtlog8btif5dtyp85jftomj4qjkzxqlb-8x4avmz7rp7skelvdwfkbqyei4erdbjiSocket is the original socket development interface in Winsock Api,c++/java they are the

1. In the beginning, C + + was just C plus some object-oriented features, originally named "C with Classes" (C with Class).2. Today's C + + is already a multi-generic programming language, supporting process form (procedural), object-oriented

1. Const can be applied to objects within any scope, function arguments, function return types, member function ontologies. The const modifier pointer, if Const appears before the *, indicates that the pointer cannot change the contents of the

First look at what a flexible arrayIn C99, the last element in the struct allows an array of unknown size, which is called a flexible array member, but a flexible array member in the structure must precede at least one other member. Flexible array

Practice of classic C + + test questions1, there is a function definition:void Test (int a) {}void Test (float a) {}Then the error with the downgrade is: DA. Test (1);B. Test (' C ');C. Test ("d ')D. Test (0.5) "Default const double cannot match int

5.3 Object Copy Semantics (object copy semantics) when designing a class, andwhen assigning a class object to a class object, there are three choices:1. Do nothing, so the default behavior can be implemented.2. Provide a explicit copy assignment

in a word, C + + and Java through the socket for communication, data transmission, by sending a "byte stream" can be. Bytes are common to C + + and Java, but the process of transmission has many problems to pay attention to, I have to find out the

What is the best time to create an object? You can use the following conditions for new1 when the number of applicants is uncertain2 when large space is required3. dynamic New, non-dynamic without new,like when you read a file.You can define an

Reprint Please specify the source http://blog.csdn.net/xingjiarong/article/details/47614171By using the keyword extern, you can refer to a variable or function defined in another file in one file, with a specific example, as described below.One,

Original: http://www.cnblogs.com/zhiranok/archive/2012/05/13/cpp_multi_thread.htmlIn the development of C + + programs, generally in the throughput, concurrency, real-time high requirements. When designing a C + + program, the following points can

C, C + + does not provide direct access to the array length of the function, for the character array holding the string provides a strlen function to get the length, then for other types of arrays how to get their length? One method is to use sizeof

Article One understanding template type inferenceBasic SituationThe first is to define function templates and function calls as follows, during compilation , the compiler infers the types of T and Paramtype, which are fundamentally different because

The previous section describes the plug-in extension of pure qml, which basically satisfies most of the expansion requirements, and starts with a smaller set of C + +-based extensions(i) Update the plug-in project1. Update the Qmldir file under

Recommendation 35: Use default to specify an initial value for a generic type variableSome algorithms, such as the Find algorithm for generic collection list, may be looking for a value type, or possibly a reference type. Within this algorithm, we

Recommendation 52: Timely release of resourcesThe garbage collection mechanism automatically reclaims resources for us (the garbage collector calls finalizers automatically), so why should we voluntarily release resources?Private void

Recommendation 26: Use anonymous types to store LINQ query resultsStarting with. NET3.0, C # begins to support a new feature: Anonymous type. An anonymous type consists of a Var, an assignment operator, and a non-null initial value (or an

Implement the Tray (the taskbar icon is mutually exclusive to the tray icon), and the minimized click-to-click button separates when the taskbar icon is clicked.Specific as follows:1. Add the following controls to the form: MenuStrip menuStrip1,

This example prints a label by using Excel to make a template in WebService.The specific requirements are: an order one page printing 4 line entries, if more than 4 lines, then again in the original format of the paper printing, if the number of

Recommendation 17: Loop traversal with foreach in most casesSince this recommendation involves the traversal of a collection, let's consider how to traverse the binding before starting this recommendation. Suppose there is an array whose traversal

------java training, Android training, iOS training,. NET training , look forward to communicating with you! -------How to create a------------Nsarray1), class method creation+ (instancetype) array;+ (Instancetype) Arraywithobject: (ID) anobject;+