The const -defined constants are freed after the function executes, and static constants defined by the statics are not freed when the function is executed. However, whether they are const or static, the content they define will be known to the
The space of a constant defined by const is released after the function is executed, while the static constant defined by static is not released after the function is executed.
Static indicates static. Static member functions of a class. member
C + + classes have several types of data members: normal type, constant (const), static (static), and static Const. Here are the following ways of initializing them before and after c++11 respectively.Initialization of previous versions of
I have learned C ++ for a long time, but I have never been able to write c ++ code, so many things have been forgotten. During my vacation, I found C ++ learning materials to review and write down some study notes for my future review. The following
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C ++ static, const, and static const and their initialization
C ++ static, const, and static const and their initialization(17:27:47)Reprinted
Tags:Cstaticconst initialize it
Defining constants is best used with static const, without # defineConstants are often defined when writing code. For example, to write a UI view class, the view is displayed and then the animation is played, and then disappears. You may want to
Overview:The source code of the C preprocessor handler, which runs before the compiler, usually begins with the symbol #.Also involves static, const knowledge points ... Some are similar to Java ... Some easily confuse t.t.Many of the chapters in
Ask questionsThe following code, can compile the chain has been connected?void f(constint &value){}class Test{public: staticconstint1;};int main(){ f(Test::a); return0;}My first feeling is: there should be no problem, right. In the VS 2013
#include using namespace Std;Class Test{Privateconst int A; Const member variables can only be initialized in the constructor's member initialization list, not in the body of the function, or elsewherestatic int b; Static member variables need to be
Basic definition:Const is a read-only meaning and is used only in declarations;static generally has 2 functions, which specify scope and storage mode .For local variables, static is defined as static storage , the initial value of each invocation is
C ++ class const, static, static const member variables# Include
Using namespace std;
Class Test
{
Private:
Const int a; // The const member variable can only be initialized in the constructor member initialization list,
[Link to this article]
Http://www.cnblogs.com/hellogiser/p/static-const.html
[Analysis]
Const data members must be initialized in the constructor initialization list;
Static data members must be initialized globally and cannot have static delimiters,
Only static const integral the data members can be initialized within a class
As long as the static constant int type member variable can be initialized inside the class.
Only static const integral the data members can be initialized within a
This article introduces, PHP in the Static,const and define usage difference, the need for friends to refer to it.In PHP, often use static,const and define, today we come to understand the difference between the next three what?Define: A macro can
In order to limit the scope of a constant to class, you must make it a member of class, and to make sure that there is only one entity for this constant, you must make it a static member:Class Gameplayer{Private:staticconst int number = 5;
The use of common keywords in PHP object-oriented:1. The Final:final keyword can be added before a method in a class or class, but the final identity member property cannot be used.Function: A class that uses the final identity and cannot be
Staticstatic modifier local variablestatic modifier Local variables are used to modify where variables are stored, from automatic variables to static variables (space in the static area, not on the stack), but the link properties and scope of the
The role of 1.const:Const is used only to modify the right variable (basic data variable p, pointer variable *p). For example NSString *const sialertviewwilldismissnotification;Const-Modified variables are read-onlyThe role of 2.static:
To
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