Wisdom Podcast Videos Learn---->>>> pointers int *p, what P is, what &p is, what *p is

int *p = NULL;

P: The address of the memory pointed to by the pointer p

*p: The value of the memory address pointed to by the pointer p

&p: The address of the pointer p

1 #ifndef _code_pointer_demo01_h_2 #define_code_pointer_demo01_h_3 4#include <stdlib.h>5#include <string.h>6#include <stdio.h>7 8 intMain () {9     Ten     intA =Ten; One  A     Char*P1 =NULL; -  -     Char**P2 =NULL; the  -P1 =0x111111; -P2 =0x222222; -  +P1 = &A; -  +printf"P1 =%d, &p1 =%d, *p1 =%d \ n", p1, &p1, *p1); Aprintf"A =%d, &a =%d \ n", A, &a); at  -     //directly modify the value of the P1 -P1 =0x111112; -  -printf"P1 =%d \ n", p1); -  in     //indirectly modifying the value of P1 -P2 = &p1;//assign the address of the P1 to P2 to  +*P2 = -;//indirect assignment, p2 is the address of P1 -  theprintf"P1 =%d \ n", p1); *  $     return 0;Panax Notoginseng } -  the #endif //_code_pointer_demo01_h_

Wisdom Podcast Videos Learn---->>>> pointers int *p, what P is, what &p is, what *p is