fork download
copy 
  1. #include <iostream>
  2.  
  3.  
  4. #define CHECK_ALIGNMENT(arg) \
  5.     std::cout << #arg << ": " << (reinterpret_cast<long>(&arg) % sizeof(int)) << std::endl;
  6.  
  7.  
  8. int main()
  9. {
  10.     std::cout << "GCC version: " << __VERSION__ << std::endl;
  11.  
  12.     char c = 'a';    
  13.     unsigned char data[16];
  14.     CHECK_ALIGNMENT(c);
  15.     CHECK_ALIGNMENT(data[0]);
  16.     CHECK_ALIGNMENT(data[4]);
  17.     CHECK_ALIGNMENT(data[8]);
  18.     CHECK_ALIGNMENT(data[12]);
  19. }
Success #stdin #stdout 0.01s 2680KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
GCC version: 4.3.4
c: 3
data[0]: 3
data[4]: 3
data[8]: 3
data[12]: 3
https://ideone.com/Q30G2x
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!