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  1. #include <stdio.h>
  2.  
  3. int main()
  4. {
  5.     int arr[] = { 3, 5, 6, 7, 9 };
  6.     int *p = arr;
  7.     int (*ptr)[5] = &arr;
  8.  
  9.     printf("p = %p, ptr = %p\n", p, ptr);
  10.     printf("*p = %d, *ptr = %p\n", *p, *ptr);
  11.  
  12.     printf("sizeof(p) = %lu, sizeof(*p) = %lu\n",
  13.                           sizeof(p), sizeof(*p));
  14.     printf("sizeof(ptr) = %lu, sizeof(*ptr) = %lu\n", 
  15.                         sizeof(ptr), sizeof(*ptr));
  16.     return 0;
  17. }
Success #stdin #stdout 0s 4556KB
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stdin
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Standard input is empty
stdout
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p = 0x7ffc1b488580, ptr = 0x7ffc1b488580
*p = 3, *ptr = 0x7ffc1b488580
sizeof(p) = 8, sizeof(*p) = 4
sizeof(ptr) = 8, sizeof(*ptr) = 20
https://ideone.com/f543lL
language:
C (gcc 8.3)
created:
5 years ago
visibility:
public

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