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  1. #include <iostream>
  2. #include <cstdlib>
  3.  
  4. template<size_t N> struct S {
  5.     S() { std::cout << N << std::endl; }
  6. };
  7. template<size_t N> void create() { new S<N>(); }
  8. void doCreate(size_t n) { 
  9.     typedef void (*CreateFn)();
  10.     CreateFn fn[] = {
  11.       create<0>, create<1>, create<2>, create<3>, create<4>  
  12.     };
  13.     fn[n]();
  14. }
  15.  
  16. int main() {
  17.     std::srand(time(0));
  18.     doCreate(std::rand() % 5);
  19. }
  20.  
Success #stdin #stdout 0.01s 2816KB
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https://ideone.com/zoH1vg
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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