Absrtact: In C language teaching, the self-increment self-subtraction operator is widely used, and it has certain skill and difficulty. Among the many operators, the self-increment decrement operator is the most difficult to understand and the most
Prefix and suffix of the auto-increment and auto-increment operators, and suffix of the operator prefix.
There is such a question in the exam:
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inta = 4;(++a) += i;
Evaluate the value of a. The correct answer is 10.
If you think
The self-increment operator + + has both prefixes and suffixes, and in conjunction with the indirect access operator *, because of the effects of order, parentheses, and binding relationships, it is easy to misunderstand and produce the wrong
Prefix increment and decrement operators: + + and-Grammar
+ + Unary-expression––unary-expression
NoteThe prefix increment operator (+ +) adds 1 to its operand, which is the result of an expression. The operand must be a left value that is not a
Clause 5: Be careful with user-defined conversion functions
C ++ allows the compiler to implicitly convert two data types. (Implicit conversion). First, C ++ inherits the type conversion policy of C language.
In addition, C ++ has two types of
In the previous chapters we have been exposed to the overload of the increment operator, at that time we did not distinguish between the previous increment and the ++a difference, under normal circumstances we are not separate from the a++, but it
The operands of predefined operators in C + + can only be basic data types, and in fact, for many user-defined types, similar operations are Required. For example:Class Complex{PublicComplex (double r=0.0,double i=0.0) {real=r;imag=i;}void Display ()
Transferred from: http://bbs.csdn.net/topics/330189207C language's self-increment + +, self-subtraction-operator has always been a problem for beginners, and even a lot of veteran will be confused, recently I saw a problem on the Internet:#include
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
The following is a detailed summary of the description and function of various operational symbols in C #first, []square brackets ([]) are used for arrays, indexers, and properties, and also for pointers.1, the array type is a type followed by
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