Re: incrementing a pointer to an array

subramanian100in@xxxxxxxxx, India said:

The following portion is from c-faq.com - comp.lang.c FAQ list ·
Question 6.13

int a1[3] = {0, 1, 2};
int a2[2][3] = {{3, 4, 5}, {6, 7, 8}};
int *ip; /* pointer to int */
int (*ap)[3]; /* pointer to array [3] of int */\

ap = &a1;
printf("%d\n", **ap);
ap++; /* WRONG */

Here why is incrementing ap ie 'ap++' mentioned as WRONG ?

I'm not sure. I don't know of any reason why it's illegal. Maybe Steve just
means it's a lousy idea.

Isn't it
similar to
int i_int = 100;
int *p = &i_int;
p++;

Yes.

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Richard Heathfield <http://www.cpax.org.uk>
Email: -http://www. +rjh@
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