1. Introduce STL and explain in detail how STL implements vector.Answer:STL (standard template library. It consists of container algorithm iterator.STL has the following advantages:It is easy to implement a series of algorithms such as searching
1 is a special class2 StatementUnion union Union name {Member list;};3. All members use one memory space. The maximum value is used for allocation.4. You can define access permissions for members.Union {Public:A (int x): B (X ){}Char D;Int B;PRIVATE:
The following discussion is about the result of # pragma pack (Num). Num indicates how many bytes are aligned.
When beginners are Learning Object-oriented programming languages, they have more or less questions. The code we write is quite different
Class
A class is a data structure that can include: data members (constants and fields), function members (methods, attributes, events, indexes, operator, instance constructor, destructor, and static constructor), and Nested classes.
Abstract class:
This question is only used to test C ++/CProgramBasic programming skills. The content is limited to common C ++/C syntaxes and does not involve data structures,AlgorithmAnd profound syntax. The test score reflects the programming quality and
Replacing macros with Inline:
1. inline functions can be debugged at runtime, but macro definitions cannot;2. the compiler checks the parameter types of inline functions for security or automatically converts the types (same as normal functions),
In the C ++ programming process, once the Class type is defined, its instance object can be created, initialized, and pointer variables can be defined to point to it, in other words, the instantiated class is an object. Well, the following will take
Print? /* Copyright (c) 2012, computer College, Yantai University* All rights reserved.* File name: text. cpp* Author: Hu Ying* Completion date: January 1, May 20, 2013* Version No.: v1.0** Input Description: None* Problem description: (1) create a
Try to implement the Java synchronized keyword in C ++.
A powerful keyword in Java is calledSynchronizedTo facilitate thread synchronization. Today's whimsical attempt is to simulate a similar one in C ++.
When I recently learned C ++ STL and saw
attribute is one of the GNU C features and is widely used in iOS. There are many places to use in the system. attribute can set function attributes (functions attribute), variable attributes (Variable attribute), and type attributes. Function
C ++ map. insert has different parameter types, and the number of constructor and destructor is different. map. insert1. parameter passing Method
When insert is used as map interpolation, the insert parameter may include the following:
Make_pair
15th http://www.bkjia.com/kf/201202/118370.htmlClause 26: try to delay the time when the variable definition appears Postpone variable definitions as long as possible As long as you define a type variable with constructor and destructor, when the
ObjectiveFor a class, the most basic three-class member functions are: constructors, destructors, and copy functions (copy constructors and = overloaded functions). Even if your class does not define these functions, C + + will automatically be
A few days ago I saw someone in the group talking about the difference between new and malloc, and I saw someone say that malloc is not as good as new, and it makes sense to look at the reasons why new is better than malloc, but then I thought,
Preface
From the perspective of compilation, in-depth analysis of C ++ virtual functionsIt has been well received by many readers since it was posted on the csdn homepage. I am very happy. I plan to analyze the language structure in C ++ from the
. NET software engineer interview question 1. Blank question:
1. The three major features of a class are (encapsulation) (inheritance) (polymorphism ).
2. A maximum of (256) tables or views can be specified in the from clause of the SELECT statement.
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