On Sat, 9 Jan 1999, Richard Ivanowich wrote:
> Hello all,
>
> Now i know arrays do no bound checking. How would i make it do bound
> checking?
>
> ie. int array[10];
>
> for(i=0;i<=11;i++) {
> array[i]=i;
> }
Simple rule: array[n] has n elements, indexing starts with
0 and ends with n-1.
One (potentially slow) way to do bounds checking with
automatic or static arrays with a constant number of
elements is:
int array[10]
int i;
for(i = 0; i < sizeof(array) / sizeof(int); i++)
array[i]=i;
But that is a real suckful way to go about it, much better
would be to use a macro.
#define ARRAY_SIZE 10
int array[ARRAY_SIZE];
for(i = 0; i < ARRAY_SIZE; i++)
array[i]=i;
Does this answer your question ?
