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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. struct Foo {
  5. 	struct {
  6. 		operator float() const { return 0.0f; }
  7. 	} bar;
  8. };
  9.  
  10. void bar(const float *f) {}
  11.  
  12. int main() {
  13. 	Foo f;
  14. 	bar(&f.bar);
  15. 	return 0;
  16. }
Compilation error #stdin compilation error #stdout 0s 15240KB
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stdin
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Standard input is empty
compilation info 
prog.cpp: In function ‘int main()’:
prog.cpp:14:12: error: cannot convert ‘Foo::<anonymous struct>*’ to ‘const float*’ for argument ‘1’ to ‘void bar(const float*)’
  bar(&f.bar);
            ^
stdout
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Standard output is empty
https://ideone.com/it4Tkw
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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