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  1. #include <typeinfo>
  2. #include <type_traits>
  3. #include <iostream>
  4.  
  5. int main()
  6. {
  7.     using type = decltype(std::ios_base::fixed) ;
  8.  
  9.     std::cout << "name: " << typeid(type).name() << '\n'
  10.                << std::boolalpha
  11.                << "integral type? " << std::is_integral<type>::value << '\n'
  12.                << "enumeration type? " << std::is_enum<type>::value << '\n' ;
  13. }
  14.  
Success #stdin #stdout 0s 3296KB
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Standard input is empty
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name: St13_Ios_Fmtflags
integral type? false
enumeration type? true
https://ideone.com/hNlyfk
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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