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  1. #include <stdio.h>
  2.  
  3. struct Point {
  4.   int x;
  5.   int y;
  6. };
  7.  
  8. #define $r (*_r)
  9. #define with(expr, f) ({ typeof(expr) *_r = &(expr); if(1) f; (*_r); })
  10.  
  11. int main() {
  12.   Point p;
  13.   with(p, { 
  14.     $r.x = 1; 
  15.   });
  16.   printf("%i", p.x);
  17.   return 0;
  18. }
Success #stdin #stdout 0s 3296KB
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https://ideone.com/jn7QgP
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
public

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