ex1909.cpp

来自「teach yourself C++ in 21 days 第五版」· C++ 代码 · 共 10 行

// template swap:
// must have assignment and the copy constructor defined for the Type.
template <class Type>
void swap( Type& lhs, Type& rhs)
{
     Type temp( lhs );
     lhs = rhs;
     rhs = temp;
}