what ** means

[Guest_imported]

main()
{
char **p="Hello";
printf("%s",p);
}
what does that **p mean?can anybody explain this pointer
descriptively

 

[Zyrenthian]

well... char** p; is a 2 dimentional pointer.

char** p = "Hello" is, in my opinion, useless... it will be the same as char* p = "hello" with the current implimentation.

Here is where it could prove useful

int array[2][2];

for(int i = 0;i<2;i++)
{
    for(int j = 0;j<2;j++)
    {
       array[i][j] = (i+1)*(j+1);
    }
}

printf(&quot;%d&quot;,**array); // will print out 1


You can dereference it with the **

matt