Char*,const the conversion problem between char*,char[],string.

#include <iostream>
#include <stdlib.h>
#include <string>


using namespace Std;
int main ()
{
string and const char* Mutual transfer
Const char* A;
String str_1 = "My name is Pang";
A = Str_1.c_str ();
cout<<a<<endl;


Const char* Turn string
Const char* a_1 = "Hello string";
String str_2 (a_1);
cout<<str_2<<endl;


String Turn char*
String str_3 = "string to char*";
char* a_2;
int lenofstr = Str_3.length ();
a_2 = new CHAR[LENOFSTR];
strcpy (A_2,str_3.c_str ());
cout<<a_2<<endl;


String Transfer char* Method 2
String str_31 = "string to char* function 2";
char* a_31;
a_31 = const_cast<char*> (Str_31.c_str ());
cout<< "The function of String to char*" << a_31<<endl;


char* Turn string
String str_4;
char* a_3 = "char * to String";
Str_4 = A_3;
cout<<str_4<<endl;


Const char* Turn char*
Const char* a_5 = "Const char* to char*";
char* a_6 = new char[100];
strcpy (a_6,a_5);
cout<<a_6<<endl;
Delete A_6;


The strcpy () function is to copy the contents of the A_5 to A_6, but the copy is cut off when the sentence is encountered with the/terminating character as follows:
Const char* a_7 = "Const char* to char*";
char* a_8 = new char[100];
strcpy (a_8,a_7);
The cout<<a_8<<endl;//output A_8 is only copied to the const char*

Using Const_cast can also be implemented
Const char* a_71 = "Const char* to char*";
String str_71 (a_71);
A_8 = const_cast<char*> (Str_71.c_str ());
cout<<a_8<<endl;


char* go to const char*
char* a_9 = "A_9 char* to const char*";
Const char* A_10 = A_9;
cout<<a_10<<endl;


Char[] Turn string
Char a_11[10]= "123456";
string str_11 = A_11;
cout<<str_11<<endl;


String to char[]
String Str_12 = "123321";
Char a_12[12];
strcpy (A_12,str_12.c_str ());
cout<<a_12<<endl;


char* Turn char[]
char* a_13 = "\n\n\nchar* to char[]";
Char arr_1[100];

cout<< &a_13<<endl;
cout<< (a_13[0]) <<endl;
cout<< &a_13<<endl;

cout<< &arr_1<<endl;
&arr_1 = *a_13;
strcpy (ARR_1,A_13);
cout<<arr_1<<endl;
Incidentally, the concept of character pointers, when creating a character pointer, memory opened up two space, a space to store char* to char[] This sentence, another to store char* type of a_14,This a_14\
is a character pointer, has its own memory location, its station a memory address, its own value is the first address of the following sentence.
char* a_14 = "char* to char[]";

printf ("%x\n", &a_14);
printf ("%x\n", &a_14[0]);
printf ("%x\n", a_14);
}

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

Char*,const the conversion problem between char*,char[],string.