pointer to an array

[amit zala]

main()
{
int a[4][4];

int *q[4]; // now q points to an array of 4 integers;

now if i want to access array elements through this pointer q, what should i do?

/*
q=a;
ans=*(q);
/* this lines are producing garbage values on console!
don knw y?
}

[johny10151981]

please define q as

int **q;

[weaknessforcats]

Please read this: http://bytes.com/topic/c/insights/77...rrays-revealed


Ths is not true:

int *q[4]; // now q points to an array of 4 integers;
 

q is an array of 4 pointers to int.

A pointer to an array of 4 ints would be:

int (*q)[4];
 

q[0] is the first array of 4 int and q[0][1] is the 2nd int in the q[0] array.

int** q;

cannot be used as a pointer to an array because it is a pointer to a pointer to a single int.

I have seen this used as a pointer to a 2d array but not without typecasting and a bunch of other fiddling to keep the compiler happy.