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  1. #include <iostream>
  2.  
  3. namespace detail
  4. {
  5.     template <typename T> struct foo;
  6.  
  7.     template <typename T>
  8.     struct foo<T*>
  9.     {
  10.         void operator()(const T* str) {std::cout << "ptr: " << str << std::endl;}
  11.     };
  12.  
  13.     template <typename T, std::size_t N>
  14.     struct foo<T [N]>
  15.     {
  16.         void operator()(const T (&str)[N]) {std::cout << "arr: " << str << std::endl;}
  17.     };
  18. }
  19.  
  20. template<typename T>
  21. void foo(const T& t)
  22. {
  23.     detail::template foo<T>()(t);
  24. }
  25.  
  26. int main()
  27. {
  28.     const char* ptr = "hello world";
  29.     foo("hello world"); // arr
  30.     foo(ptr);           // ptr
  31.     return 0;
  32. }
  33.  
Success #stdin #stdout 0s 3340KB
comments (?)
stdin
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Standard input is empty
stdout
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arr: hello world
ptr: hello world
https://ideone.com/Wn5Yjb
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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