while loop

[momotaro]

why these two versions of code don't give the same result?
[CODE=c]
int i = 0;
while(i < MAXSIZE)
{
printf("%s\t%d\ n", emp_arr[i].name, emp_arr[i].age);
i++;
}
//*************** ************and *************** ******

int i = 0;
while(i < MAXSIZE)
printf("%s\t%d\ n", emp_arr[i++].name, emp_arr[i++].age);
[/CODE]


ain't they equivalent?

[JosAH]

why these two versions of code don't give the same result?

ain't they equivalent?

No they're not: the first loop is correct but the second loop even causes undefined
behaviour because you're assigning a new value to a modifiable lvalue in an
actual parameter list more than once. Use the first loop.

kind regards,

Jos

[xoinki]

also, emp[i++].name causes name to be printed and i to be icremented.. so emp[i++].age would try to print the incremented value..
(actually it may happen in the reverse direction.. first emp[i++].age then emp[i++].name)
so it wont print same result

regards,
xoinki

[Matthew Page]

Along the same lines as the last post, you are incrementing i twice instead of once for each loop iteration.