C++ Insights

Source:

#include <iostream>
#include <string>
#include <type_traits>
#include <vector>
#include <map>
#include <set>
#include <unordered_map>

template< typename TValue >
inline void Print( const TValue& value )
{
  std::cout << "Value";
}

template< typename TItem, typename TAllocator, template< typename, typename > class TStorage >
inline void Print( const TStorage<TItem, TAllocator>& storage ) 
{ 
  std::cout << "Linear container";
}

template< typename TItem, size_t ARRAY_LENGTH >
inline void Print( const TItem (&storage)[ ARRAY_LENGTH ] ) 
{ 
  std::cout << "Trivial array"; 
}

template< typename TItem, typename TPredicate, typename TAllocator >
inline void Print( const std::set<TItem, TPredicate, TAllocator>& storage ) 
{
  std::cout << "Set";
}

template< typename TKey, typename TItem, typename TPredicate, typename TAllocator >
inline void Print( const std::map<TKey, TItem, TPredicate, TAllocator>& storage ) 
{
  std::cout << "Map";
}

template< typename TKey, typename TItem, typename THash, typename TPredicate, typename TAllocator >
inline void Print( const std::unordered_map<TKey, TItem, THash, TPredicate, TAllocator>& storage ) 
{
  std::cout << "Hash map";
}

int main()
{
  Print( 10.0f );
  Print( 42ULL );
  Print( std::vector<int>{ 5, 3, 8, 6 } );
  return 0;
}

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