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  1. template < typename T >
  2. struct Delta {
  3.     typedef decltype( T() - T() ) Value;
  4. };
  5.  
  6. template <typename T,
  7.     typename DT = typename Delta<T>::Value >
  8. class A { };
  9.  
  10.  
  11. int main()
  12. {
  13. 	A<int> a;
  14. }
Success #stdin #stdout 0s 3292KB
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https://ideone.com/mnspoM
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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