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  1. #include <string>
  2. class A
  3. {
  4.  public:
  5.    template<class T>
  6.    static T& Get(const std::wstring&);
  7. };
  8.  
  9. class B
  10. {
  11.  public:
  12.   void f(
  13.     double d,
  14.     double c = A::Get<double>(L"test"));
  15. };
  16.  
  17. int main()
  18. {
  19.     B b;
  20.     b.f(5);
  21. }
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
/home/PsreXn/cccgko8t.o: In function `main':
prog.cpp:(.text.startup+0x28): undefined reference to `double& A::Get<double>(std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> > const&)'
prog.cpp:(.text.startup+0x3e): undefined reference to `B::f(double, double)'
collect2: error: ld returned 1 exit status
stdout
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Standard output is empty
https://ideone.com/wYfUPZ
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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