std 命名空间参考

类
struct	hash< xgboost::IntrusivePtr< T > >

函数
template<class T >
void	swap (xgboost::IntrusivePtr< T > &x, xgboost::IntrusivePtr< T > &y) noexcept

函数文档

swap()

template<class T >

void std::swap ( xgboost::IntrusivePtr< T > &  x, xgboost::IntrusivePtr< T > &  y  )

noexcept