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  1. #include <stdio.h>
  2. #define N 4
  3.  
  4. int main(void)
  5. {
  6.   int a[N][2];
  7.   int (*b[N])[2];
  8.   int (*c)[2];
  9.   int **d;
  10.   int i;
  11.  
  12.   for (i = 0; i < N; i++) {
  13.     a[i][0] = 2 * i + 1;
  14.     a[i][1] = 2 * i + 2;
  15.   }
  16.   for (i = 0; i < N; i++)
  17.     printf("%d, %d\n", a[i][0], a[i][1]);
  18.   printf("\n");
  19.  
  20.   for (i = 0; i < N; i++) {
  21.     b[i] = &a[i];
  22.   }
  23.   printf("b = %08X\n", b);
  24.   for (i = 0; i < N; i++)
  25.     printf("%d, %d\n", (*b[i])[0], (*b[i])[1]);
  26.   printf("\n");
  27.  
  28.   c = a;
  29.   for (i = 0; i < N; i++)
  30.     printf("%d, %d\n", c[i][0], c[i][1]);
  31.   printf("\n");
  32.  
  33.   d = (int **)b;
  34.   printf("d = %08X\n", d);
  35.   for(i = 0; i < N; i++)
  36.     printf("%d, %d\n", d[i][0], d[i][1]);
  37.   printf("\n");
  38.  
  39.   return 0;
  40. }
  41.  
Success #stdin #stdout 0s 1788KB
comments (?)
stdin 
Standard input is empty
stdout 
1, 2
3, 4
5, 6
7, 8

b = BFB795D0
1, 2
3, 4
5, 6
7, 8

1, 2
3, 4
5, 6
7, 8

d = BFB795D0
1, 2
3, 4
5, 6
7, 8
https://ideone.com/xo2mpq
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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