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  1. struct foo
  2. {
  3.   operator bool() const
  4.   {
  5.    return true; 
  6.   }
  7.  
  8.   template<typename T>
  9.   operator T() const = delete;
  10. };
  11.  
  12.  
  13. int main()
  14. {
  15.  foo f;
  16.  
  17.   if( f == true);
  18.   if( f );
  19. }
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:17:12: error: use of deleted function ‘foo::operator T() const [with T = int]’
   if( f == true);
            ^
prog.cpp:9:3: error: declared here
   operator T() const = delete;
   ^
stdout
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Standard output is empty
https://ideone.com/8Ch5Jg
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
secret

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