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1109117A
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1993-07-13
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878b
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43 lines
/* array9.c: Uses a pointer to a 2-d array */
#include <stdio.h>
main()
{
int a[][3][4] = {{{0,1,2,3},{4,5,6,7},{8,9,0,1}},
{{2,3,4,5},{6,7,8,9},{0,1,2,3}}};
int (*p)[3][4] = a;
int i, j, k;
size_t ntables = sizeof a / sizeof a[0];
size_t nrows = sizeof a[0] / sizeof a[0][0];
size_t ncols = sizeof a[0][0] / sizeof a[0][0][0];
printf("sizeof(*p) == %u\n",sizeof(*p));
printf("sizeof(a[0][0]) == %u\n",sizeof(a[0][0]));
for (i = 0; i < ntables; ++i)
{
for (j = 0; j < nrows; ++j)
{
for (k = 0; k < ncols; ++k)
printf("%d ",p[i][j][k]);
putchar('\n');
}
putchar('\n');
}
return 0;
}
/* Output
sizeof(*p) == 24
sizeof(a[0][0]) == 8
0 1 2 3
4 5 6 7
8 9 0 1
2 3 4 5
6 7 8 9
0 1 2 3
*/