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  1. #include <iostream>
  2.  
  3. struct A {
  4.     A() {
  5.         std::cout << "A()";
  6.     }
  7.     void f() {
  8.         std::cout << "f";
  9.     }
  10. };
  11.  
  12.  
  13. void test(A *a = nullptr) {
  14.     a->f();
  15. }
  16.  
  17. int main() {
  18.     test();
  19.     return 0;
  20. }
Success #stdin #stdout 0s 15232KB
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stdin
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Standard input is empty
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f
https://ideone.com/ZDxIJi
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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