c assignment operator

The compound assignment operators are: + =,-=, *=,/=,%=, The simple assignment operator is =;The code is as follows:public class Example009 {public static void main (string[] args) {short x = 1;int X1 = 1;int i = 123456;x + = i;//assignment 1x1 + = i;//Assignment 2system.out

C + + Primer learning note _28_ operator overloading and conversion (3)--overloading of member functions, overriding and hiding, type conversion operators, * operator overloading, operator overloadingoverloading, overwriting and hiding of member functionsfor a member function of the same name at the class level, there are three relationships: overloading, overwri

1. Increment decrement operatorThe C + + language does not require that the increment decrement operator be a member of a class. But because they change exactly the state of the object being manipulated. Therefore, it is recommended to set the member function .For increment and decrement operators, there is a predecessor and a post two version number, so. We should define the increment and decrement operators for the two version numbers for a class.He

* b2)/(a2 * a2 + b2 * b2) + (b1 * a2-a1 * b2)/(a2 * a2 + b2 * b2) Comparison operator:= ,! = Value assignment operator: = Evaluate the modulo member function:Equal to the arithmetic square root of a ^ 2 + B ^ 2 Therefore, the operator overloading of the plural class involves the following: 1. Write the header file

The Type conversion operator (type conversion operator) is a special class member function that defines the conversion of a class type value to another type value.Change. The conversion operator is declared in the class definition body, followed by the target type of the conversion after the reserved word operator.Class Cvimage{Public:Cvimage ();Explicit cvimage

right value usually does not have a name, so we can only find it by reference. Compare the following two statements: T a = Returna (); T B = Returnb ();When a is a right value reference, he is less than B. The process of object destructor and object construction. A directly binds the temporary variable returned by Returna. B is only constructed from the value of the temporary variable. You should be able to see it clearly. A right value reference is the return of the right value (temporary obj

The shift operator is also for the binary "bit", which mainly includes the left shift operator ( 1. Left shift operatorThe left-shift operator, represented by "public class Data17{public static void Main (string[] args){int a=2;int b=2;The result of System.out.println ("A shift is:" + (a}}Run resultsThe result of a shift is: 8Analyze the above program section:Fi

Why must operator If the operator is an overloaded binary operator (a member function of the class), you only need to set a parameter as the calculation amount on the right side, and the calculation amount on the left side is the object itself ......And> or If it must be declared as a member function, it can only be in the following form: Ostream

Point operator--( Point, int ) // Postfix decrement Int-type parameters with the suffix of the increment or decrease operator are not often used to pass parameters. It usually contains a value of 0. However, you can use it as follows: // increment_and_decrement2.cppclass Int{public: Int operator++( int n );private: int _i;};Int Int::

Python3 excellent parsing operator and python3 excellent Operator Arithmetic Operators+: Add two objects.-: Get a negative number or, or a number minus another number.*: Multiply two numbers or return a string that has been repeated for several times./: 5/2 equals 2.1 5 // 2 = 2 (/has the remainder, // get the integer)%: Modulo (5% 2 = 1)**: The power of 10 (10 ** 21) to the power of 21Comparison (relationa

only if the operand is false.Using System;Class MainClass{static void Main (){Console.WriteLine (!true);Console.WriteLine (!false);}}14, ~The ~ operator performs a bitwise complement operation on the operand, which is equivalent to reversing each bit. The bitwise complement operator is predefined for int, uint, long, and ulong types.Using System;Class MainClass{static void Main (){Int[] values = {0, 0x111,

Recently has been in a written interview, often encountered such as 123== ' 123 ',' abc ' ==true and other issues, including the correct answer, there is also wrong, the main reason or the ECMAScript of the norms did not understand clearly, Many problems are not caused by specific analysis. A summary of the information is available after the review. Equality operator (= =) 1, the type of comparison is the basic types of string, number, BooleanWhen com

Recently has been in the written interview, often encountered such as 123== ' 123 ', ' abc ' ==true and other issues, including the correct answer, there is also wrong, the main reason or the ECMAScript norms did not understand clearly, many of the problems are not specific analysis caused. A summary of the information is available after the review.Equality operator (= =) 1, the type of comparison is the basic types of string, number, BooleanWhen comp

Scene:1. See WTL CWindow Source code will find such a operator overload, look closely will find it is not overloaded () operator.operator HWND () const throw () {return m_hwnd;}If the overloaded () operator, it should be, the return value HWND should be on the left side of operator, and should have two parentheses ()HWND oper