C言語day 08－13マルチレベルポインタ

pragma markマルチレベルポインタ
pragma mark概念
pragma markコード

#include 
int main()
{
#warning     
    /*
    char charValue = 'l';
    char *p;
    p = &charValue;
    
//    charValue = 'y';
    *p = 'y';
    printf("%c
",*p);
    */
    
#warning     
    /*
    char charValue = 'l';
    // 1.                   
    // 2.                 
    // 3.      
    char *charValueP;
    charValueP = &charValue;
    
    // 1.                   
    // 2.                 
    // 3.      
    char **charValuePP; //                  8   
//    printf("size = %lu
",sizeof(charValuePP));
    charValuePP = &charValueP;
    
    
    //   1
//    charValue = 'j';
    
    //   2
    // *pcharValuep == charVlaue
//    *charValueP = 'j';
    
    //   3
    
    // &charVlaue == charVlaueP
    printf("&charValue = %p
",&charValue);
    printf("charValueP = %p
",charValueP);
    
    // &charValueP == charVlauePP
    printf("&charValueP = %p
",&charValueP);
    printf("charValuePP = %p
",charValuePP);

    // *charVlauePP == offc14 == charValueP
    // *pp = p
    
    // **charValuePP = *(charValuePP) == *charValueP == 0ffc14 == y
    
    **charValuePP = 'N';
//    printf("%c
",charValue);
//    printf("%c
",*charValueP);
    printf("%c
",**charValuePP);
     */
    
    char c = 'a';
    char *cp;
    cp = &c;
    char **cpp;
    cpp = &cp;
    
    char ***cppp;
    cppp = &cpp;
    printf("cppp = %c
",***cppp);
    
    /*
       
     *cp == c;
     *cpp == cp;
     **cp == *(*cpp) == *cp == c
            ,      ,          ,         
               ,         ,             
     */
    
    printf("c = %c
",c);
    printf("&c = %p
",&c);
    
    printf("*cp = %c
",*cp);
    printf("cp = %p
",cp);

    printf("**cpp = %c
",**cpp);
    printf("*cpp = %p
",*cpp);
    
    
    return 0;
}