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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. void f(int a=1);     // forward declaration with a default value for the compilation unit
  5. void f(int a)        // definition 
  6. {
  7. 	cout<<a<<endl; 
  8. }
  9. void g() {
  10. 	void f(int a=2);  // declaration in the scope of g
  11. 	f();
  12. }
  13. int main() {
  14. 	f();			// uses general default => 1
  15. 	g();			// uses default defined in g => 2
  16. 	return 0;
  17. }
Success #stdin #stdout 0s 15232KB
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https://ideone.com/UGztSD
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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