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  1. #include <iostream>
  2.  
  3. int main ()
  4. {
  5.     constexpr int N = 5 ;
  6.     int numbers[N] = {0} ;
  7.  
  8.     std::cout << N << " elements of array numbers are located at:\n\t" ;
  9.     for( int i=0 ; i<N ; ++i ) std::cout << &numbers[i] << ' ' ;
  10.     std::cout << '\n' ;
  11.  
  12.     int* p = nullptr ;
  13.     p = numbers ;
  14.     std::cout << "after p = numbers, pointer p points to address: " << p << '\n' ;
  15.     *p = 10;
  16.  
  17.     ++p ;
  18.     std::cout << "after ++p, p points to address: " << p << '\n' ;
  19.     *p = 20;
  20.  
  21.     p = &numbers[2];
  22.     std::cout << "after p = &numbers[2], p points to address: " << p << '\n' ;
  23.     *p = 30;
  24.  
  25.     p = numbers + 3;
  26.     std::cout << "after p = numbers+3, p points to address: " << p << '\n' ;
  27.     *p = 40;
  28.  
  29.     p = numbers;
  30.     std::cout << "after p = numbers, p points to address: " << p << '\n' ;
  31.     std::cout << "(p+4) points to address: " << p+4 << '\n' ;
  32.     *(p+4) = 50;
  33.  
  34.     for( int v : numbers ) std::cout << v << ' ' ;
  35.     std::cout << '\n' ;
  36. }
  37.  
Success #stdin #stdout 0s 2896KB
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stdin
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Standard input is empty
stdout
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5 elements of array numbers are located at:
	0xbfed9e8c 0xbfed9e90 0xbfed9e94 0xbfed9e98 0xbfed9e9c 
after p = numbers, pointer p points to address: 0xbfed9e8c
after ++p, p points to address: 0xbfed9e90
after p = &numbers[2], p points to address: 0xbfed9e94
after p = numbers+3, p points to address: 0xbfed9e98
after p = numbers, p points to address: 0xbfed9e8c
(p+4) points to address: 0xbfed9e9c
10 20 30 40 50
https://ideone.com/auVwyU
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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