C++

1 Preface In the practical application, for some large-scale application system, the application business logic is quite complex, if the application system adopts the traditional client/server architecture, the business logic is too centralized and

"Implementation of named pipe Communication in C + + programs" Recent learning C + +, Taker process to choose to implement a program with the injected Program interoperability tool, feel if the computer local communication using the socket seems to

Special operators for 5.4 Turbo C One, "?" Operator "?" The operator is a three-mesh operator, and the general form is: ?:; "?" The meaning of an operator is to first evaluate the value of expression 1 and, if true, the value of expression 2 and use

1 reinterpret_cast (conversion is implemented during compilation) The Reinterpret_cast type conversion function converts a pointer of one type into a pointer to another type. This conversion is not used to modify the format in which the value data

Second, increment operation There are two very useful operators in turbo C that are not normally available in other advanced languages. These two operators are the 1 and minus 1 operators "+ +" and "--", the operator "+ +" is the operand plus 1, and

1,malloc and free are standard library functions for c++/c languages, and new/delete are the operators of C + +. Both can be used to request dynamic memory and free memory. 2, for objects that are not internal data types, Maloc/free cannot meet the

C + + provides four new type conversion operators: Const_cast dynamic_cast Reinterpret_cast Static_cast How to use: Cast_operator (object) Type conversion operator the object to convert for the type to be converted ①dynamic_cast converts a

1. Data type In the Turbo C language, each variable must have its data type defined before it is used. Turbo C has the following types: integral (int), floating-point (float), character (char), pointer (*), Value-free (void), and struct (struct)

1. Constant pointer Definition and use of pointer variables that point to constants such as: const int *p; 2. Pointer constants such as: char* const p = "ABCDE"; You can understand this: The type char* of the const p, so p can not be modified.

* There are several other iterators for the container: + iterator: Normal iterator (commonly used) + reverse_iterator: Reverse iterators (sometimes used) -Rbegin (), rend ()/return reverse iterator + Const_iterator: Constant iterator +

Today, when I write the program, I use this idiom again, so I put it on the way. This idiom is quite simple, it is estimated that many people have used it. Today is mainly posted to the novice reference (veteran will not be time-consuming to see

file contains File inclusion is another important feature of the C preprocessor. The general form of the file containing the command line is: #include "filename" in the previous we have used this command several times to include the header file of

Friends familiar with template programming may have heard this technique or pattern: Barton-nackmann techniques or singular cyclic template patterns (curiously recurring Template prattern). In fact, in the C + + programming language, this Bible

Learn C + + Comrades do not know whether and I have encountered such a puzzle: C + + virtual function in the end how to achieve? What exactly is the structure of a virtual function table in a variety of inheritance relationships? Once I was thinking

4. Function parameter transfer In the C + + language, the parameters and return values of functions are passed in three different ways: value passing, pointer passing, and reference passing. The sample program for value delivery. Because x in the

C + + 's principles for definition and declaration are defined once and repeatedly declared. Defines the memory for which variables and functions are assigned, and the declaration specifies a reference label for these variables and functions that is

Will not knock, is I read someone else's knot report after knocking, study under #include #include using namespace Std;typedef struct NODE{int label;int cnt;int leaf[200];};Node tree[200];int solve (int i){int stone[200],result,temp;if (tree[i].cnt=

Nested calls to functions Nested function definitions are not allowed in the C language. Therefore, the functions are parallel, and there is no problem of the upper and the lower level functions. But the C language allows a call to another function

1.3.4break, continue and GOTO statements 1.3.4.1break statement Break statements are usually used in circular statements and in switch statements. When the break is used in switch statement switches, the program can jump out of switch and execute a

The recent sudden interest in boost, but the boost installation is very troublesome, the online introduction of the method is mostly not comprehensive, found an article on the other compiler to install Boost method, try to change to c++builder2007