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  1. #include <functional>
  2.  
  3. void test(std::function<void(int)> f) {}
  4. void test(std::function<int(int)> f) {}
  5.  
  6. int main()
  7. {
  8. 	test([] (int x) -> int { return x; });
  9. }
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:8:2: error: call to 'test' is ambiguous
        test([] (int x) -> int { return x; });
        ^~~~
prog.cpp:3:6: note: candidate function
void test(std::function<void(int)> f) {}
     ^
prog.cpp:4:6: note: candidate function
void test(std::function<int(int)> f) {}
     ^
1 error generated.
stdout
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Standard output is empty
https://ideone.com/6oLAjz
language:
C++14 (clang 8.0)
created:
8 years ago
visibility:
secret

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