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  1. struct A {
  2.   int a;
  3.   bool operator>(const int& inty) { return a > inty; }
  4. };
  5.  
  6. template <class A, class B> auto operator<(const A& a, const B& b) -> decltype(operator>(a,b)) { return a < b; }
  7.  
  8. int main(void) {
  9. 	A a; a.a = 1; int b = 2;
  10. 	operator<(a,b);
  11. 	return 0;
  12. }
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
prog.cpp: In function 'int main()':
prog.cpp:10:15: error: 'operator>' not defined
prog.cpp:10:15: error: 'operator>' not defined
prog.cpp:10:15: error: no matching function for call to 'operator<(A&, int&)'
stdout
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Standard output is empty
https://ideone.com/rZu1f
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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