Thread: todays how do i question

I have the following

Code:

unsigned Factors[4] = { 0 }, Answer[4][4] = { { 0 } };
    const unsigned FacSize = sizeof Factors / sizeof *Factors,
                   AnsSize = sizeof Answer / sizeof **Answer;

facsize is 4 as it should be as its a single array however, AnsSize is 16. Whilst i agree that 4 *4 = 16 and i can see why i get that it is kind of meaningless as it could describe the following

Code:

 array[16] 
or
array[2][8]

is there away of getting just the number of the second elements

I assume that i then divide AnsSize by AnsRowSize if thats the case can i not do this

Code:

 AnsSize = sizeof **Answer / sizeof *Answer

or even the other way round as i assume **Answer is smaller than *Answer

im still scared of it. However, i did find that with the following

Code:

 
int a[2][5], b[3][6], c[4][2];
int aSize = sizeof *a / **a, bSize = *b / **b,  cSize = *c / **c;

printf("%d, %d, %d\n", aSize, bSize, cSize);

gave me an output of 5, 6, 2
so i assume that is correct.