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  1. #include <cstdio>
  2.  
  3. typedef unsigned short wchar;
  4.  
  5. template<class T>
  6. class Test
  7. {
  8. public:
  9.     template<class T2>
  10.     Test(const T2* sz)
  11.     {
  12.         printf ("common version\n");
  13.     }
  14.  
  15.     void foo()
  16.     {
  17.         printf("foo\n");
  18.     }
  19. protected:
  20. };
  21.  
  22. template<>
  23. template<>
  24. Test<char>::Test<wchar>(const wchar* sz)
  25. {
  26.     printf ("a.w. str: %p\n", sz);
  27. }
  28.  
  29. template<>
  30. template<>
  31. Test<wchar>::Test<char>(const char* sz)
  32. {
  33.     printf ("w.a. str: %p\n", sz);
  34. }
  35.  
  36.  
  37. int main()
  38. {
  39.  
  40.     wchar a = 3;
  41.     char b = '0';
  42.  
  43.     Test<char> t1(&a);
  44.     Test<char> t2(&b);
  45.     Test<wchar> t3(&a);
  46.     Test<wchar> t4(&b);
  47.  
  48.     t1.foo();
  49.     t2.foo();
  50.     t3.foo();
  51.     t4.foo();
  52.     return 0;
  53. }
Success #stdin #stdout 0s 3460KB
comments (?)
stdin
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Standard input is empty
stdout
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a.w. str: 0xbf8dbffe
common version
common version
w.a. str: 0xbf8dbffd
foo
foo
foo
foo
https://ideone.com/yAMokU
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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