Various summaries of the sizeof

Array type (two-dimensional)

#include <stdio.h>

int main ()

{

int a[3][4] = {0};

printf ("%d\n", sizeof (a));

printf ("%d\n", sizeof (a[0][0]));

printf ("%d\n", sizeof (a[0]));

printf ("%d\n", sizeof (a[0]+1));

printf ("%d\n", sizeof (a+1));

printf ("%d\n", sizeof (&a[0]+1));

printf ("%d\n", sizeof (*a));

printf ("%d\n", sizeof (a[3]));

return 0;

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(one-dimensional arrays)

#include <stdio.h>

int main ()

{

int a[] = {1,2,3,4};

printf ("%d\n", sizeof (a));

printf ("%d\n", sizeof (a+0));

printf ("%d\n", sizeof (*a));

printf ("%d\n", sizeof (a+1));

printf ("%d\n", sizeof (a[1]));

printf ("%d\n", sizeof (&a));

printf ("%d\n", sizeof (&a+1));

printf ("%d\n", sizeof (&a[0]));

printf ("%d\n", sizeof (&a[0]+1));

return 0;

}

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Various summaries of the sizeof