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  1. #include <cstdio>
  2. #include <cstdlib>
  3. #include <utility>
  4. #include <new>
  5.  
  6. struct A {
  7.     int i;
  8.  
  9.     A( int i = 0 ) : i( i ) {}
  10. };
  11.  
  12. template<class T>
  13. struct New {
  14.     template <class ... Args>
  15.     static T* item( Args ... args ) {
  16.         T *data = (T*)malloc( sizeof(T) );
  17.         new(data) T( std::forward<Args>( args ) ... );
  18.         return data;
  19.     }
  20. };
  21.  
  22. int main() {
  23.  
  24.     A* a = New<A>::item( 42 );
  25.  
  26.     printf( "%i\n", a->i );
  27.  
  28.     return 0;
  29. }
  30.  
Success #stdin #stdout 0s 3460KB
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stdin
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Standard input is empty
stdout
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42
https://ideone.com/5YXsTX
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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