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  1. #include <iostream>
  2. #include <type_traits>
  3.  
  4. template < typename T >
  5. void foo( const T& arg ) {
  6.     using namespace std;
  7.  
  8.     cout << "foo: ";
  9.     if( is_same<int,T>::value ) {
  10.         cout << "<int> " << arg << endl;
  11.     } else if( is_same<long,T>::value ) {
  12.         cout << "<long> " << arg << endl;
  13.     } else if( is_same<std::string,T>::value ) {
  14.         cout << "<string> " << arg << endl;
  15.     } else {
  16.         cout << "<other> " << arg << endl;
  17.     }
  18. }
  19.  
  20. int main() {
  21.  
  22.     foo( 1 );
  23.     foo( 2L );
  24.     foo( 3u );
  25.     foo( std::string("hello world") );
  26. }
Success #stdin #stdout 0s 2988KB
comments (?)
stdin
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Standard input is empty
stdout
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foo: <int> 1
foo: <long> 2
foo: <other> 3
foo: <string> hello world
https://ideone.com/VZlVTD
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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