c primer 5e

C + + Primer (Fifth edition) learning Note _8_ Standard Template Library _map mapping containerThe element data of a map mapping container consists of a key value and a mapping data, which has a relationship of one by one mappings between the key value and the mapping data.The data structure of the map mapping container is also implemented using red and black trees.1. Map creation, element insertion, and traversal access#include Operation Result:bomi:

C + + Primer learning Note _14_ Standard Template Library _bitset bit collection containerThe Bitset container is a bit-bit element of the sequence container, each element occupies only one bit bit, the value is 0 or 1, thus saving memory space. is a Bitset store that uses only two bytes of space for its 10 elements.Use Bitset to declare header file "#include 1. Create a Bitset objectWhen you create a Bitset object, you must specify the size of the co

size of the class is related to the data member (the empty class size is 1 bytes)(2) the size of the class is independent of the member function (3) The size of the class is independent of the static data member(4) The effect of virtual function on the size of the class, and subsequent consideration(5) The effect of virtual inheritance on the size of the class, and subsequent considerationExample#include Operation Result:4Explanation: The above is only related to the data members of the class

C + + Primer (Fifth edition) learning Note _2_ Standard Template Library vector (1)Welcome to read the reference, if there are errors or questions, please leave a message to correct, thank youVector container vectors not only can be randomly accessed as arrays, but can also be used to insert elements at the tail, which can replace arrays.It is important to note that vector has the function of automatic memory management, for the insertion and deletion

lowercase letters: /**/ using std::string; string str ("UPPER test"); for (Auto c:str) = ToLower (c);Especially with the use of auto and Decltype, but also save a lot of code (I believe you have the experience of using STL iterators, the code is very long, but the function is to traverse).It is important to note that range for use cannot insert or delete elements into the container, only modify them.6 listing initialization Mechanism list initializationIn combination with c++11, th

From zero single row "C + + Primer"--(4) variables, references, pointersInitialization of variablesThe initialization of a variable is a value that is given while creating a variable.Initialization method:int units_sold = 0;int Units_sold = {0};int Units_sold{0};int units_sold{0};long double ld = 3.1415926536;int A{ld}, B = { LD}; error:narrowing conversion requiredint C (LD), d = ld;//ok:but value would be truncatedDefault initialization:When we defi

C + + Primer Plus Sixth Edition notesThinking about Object declarationTransferred from: http://www.cnblogs.com/weiqubo/archive/2009/11/02/1930042.htmlWhat is the difference between the syntax for defining an object in C + + with parentheses and without parentheses? #include Class MyClass { Public MyClass () { Std::cout "Hello myclass!" } Public void MyMethod () { Std::cout "Hello mymethod!" } }; If this defines the ob

The examples in the WPF self-Learning Primer (10) WPF MVVM Simple introduction seem to run without problems or can be updated. But that's not the right way to use MVVM. As I said in the previous article, the goal of MVVM is to minimize the coupling of XAML files and CS files, separating the interface and business logic, so we do not write code in the view background as much as possible. But in this example, we'll write the updated ViewModel code in th

C + + Primer Fifth Edition after classExercise 6.32: Is the following function legal? If it is legal, explain its function, and if it is not legal, modify the error and explain why.#include 　　Legal. Assigns a value to each element in the IA array. The reference type is returned, and the left value is obtained, so it can be assigned a value.Exercise 6.33: Write a recursive function that outputs the contents of a vector object.#include 　　It's too diffic

Note: This essay is directly referenced in the "C++primer (fourth Edition) Exercise solution (full version)". Here is mainly for the convenience of my repeated reading later.Exercise 1.13Unlike compilers, the degree of difficulty in understanding their diagnostic content is different. Write programs that contain common errors discussed in this section, "Talking about the compilation" section. Study the information generated by the compiler so that you

In the previous article (pointing to a function pointer example), we mentioned that there are two logically inconsistent syntax rules for using a function pointer to implement such an operation, and we will discuss it in the form of a question, in the past few days, I have read c primer plus and found a reasonable explanation. See the following example: void ToUpper(char *);void ToLower(char *);void (*pf)(char *);char mis[] = "Nina Metier";pf = ToUpp

I heard that the sixth version is the same as the fifth version, but I have an additional chapter C ++ 11. So, I 'd better study the fifth version. There are errors in the same version 5, reference this errata: http://blog.csdn.net/woxing615701/article/details/3888576 C ++ primer plus (fifth edition) Chinese Version errata (constantly updated) This is an obvious error I found in C ++ primer plus Error se

In the previous blog Windows Build Python development environment, Python primer to master [a] we have built a python development environment on our own Windows computers, this blog I began to learn the basic syntax of Python. Now the practice of the development environment is based on windows, if a friend like Linux or Mac, as long as there is a need, I follow can give the corresponding blog post, in fact, there is no need I would not bother to say.

content of an expression is a dereference operation, then Decltype will get the reference type, for example:int *p = i; //Remember: 1) The result of decltype (expression) (double-sided brackets) is always a reference and the decltype (expression) result is a reference only if the expression itself is a reference.2) Decltype The type that is obtained when acting on an array (or function name) is a pointer to an array (or functions) rather than to an array (or function). (This sentence appears in

18 key notes for C ++ Primer Plus 6th, primerplus The following are the notes I have taken after reading C ++ Primer Plus version 6th, which can be used as a memorandum for future review.Note Section Why is the const of C ++ better than that of C # define? First, it can explicitly specify the type and has the type check function.Second, you can use the scope rules of C ++ to restrict the definition

C ++ Primer (fifth edition) Study Notes _ 8_standard template library _ map ing container, _ 8_map C ++ Primer (fifth edition) Study Notes _ 8_standard template library _ map ing container The element data of the map ing container is composed of a key value and a ing data. The key value and the ing data have a one-to-one ing relationship.The data structure of the map ing container is also implemented using

C ++ Primer study note _ 22 _ class and data abstraction (8) -- static member variable, static member function, class/object size, _ 22 -- static I. static Each static data member is an object associated with the class and is not associated with the object of this class! Non-static data members exist in each object of the class type, and static data members are independent of any object of the class. The static member function does not have this param

Redis Primer Notes (2)The previous article describes the basics of Redis and the supported data types, and this article describes Redis persistence, master-slave replication, simple transactional support, and publishing subscription capabilities.Persistence ofRedis is an in-memory database that supports persistence, which means that Redis often needs to synchronize in-memory data to disk to ensure persistence, which is a big advantage relative to memc

"C Primer Plus" is really a great book, but the letter is not as good as the book, the author Stephen Prata may also hope that his readers can find a little bit of his inadvertently appear in the small mistake it! in the fifth edition of the book, chapter 17, "Advanced Data Representation", listing 17.2 shows the following code:#include #include #include #define TSIZE 45#define LEN sizeof (struct film)struct film{Char Title[tsize];int rating;struct fi

C Primer PlusFifth edition12th chapter of the program list#include int main (){int x=30;printf ("X in Outer block:%d\n", x);{int x=77;printf ("X in inner block:%d\n", x);}printf ("X in Outer block:%d\n", x);while (x++{ int x=100; x + +; printf ("X in While loop:%d\n", X);}printf ("X in Outer loop:%d\n", x);return 0;}2.#include int main (){int n = 10;printf ("Initially, n =%d \ n");for (int n = 1; n printf ("loop 1:n =%d \ n", n.);printf ("After loop 1