I want to use smart pointer in my c++ application.
Which header file I should include for using std scoped_ptr?
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1May I know the reason for vote down – Vinod Jul 23 '12 at 12:13
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2`scoped_ptr` is not a standard smart pointer, it is [provided by Boost](http://www.boost.org/doc/libs/1_50_0/doc/html/boost/interprocess/scoped_ptr.html). C++11 introduced `std::unique_ptr`, which is similar to `scoped_ptr` with the exception that it is movable. As to the headers where these can be found, this information can very easily be found in the respective documentations. – Luc Touraille Jul 23 '12 at 12:14
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3I downvoted your question because it does not show any research effort: the StackOverflow users are not a replacement for documentation, where you could have found this information. – Luc Touraille Jul 23 '12 at 12:18
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For the differences between `boost::scoped_ptr` and `std::unique_ptr`, see [this question](http://stackoverflow.com/q/8199812/20984) and [this one](http://stackoverflow.com/q/3019512/20984). – Luc Touraille Jul 23 '12 at 12:23
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@LucTouraille Please see this link [link](http://stackoverflow.com/questions/106508/what-is-a-smart-pointer-and-when-should-i-use-one) Here, something std::tr1::scoped_ptr is mentioned in Lloyd's answer – Vinod Jul 23 '12 at 12:38
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@Lloyd's [answer](http://stackoverflow.com/a/106614/981959) is wrong, there is no `std::tr1::scoped_ptr` – Jonathan Wakely Jul 23 '12 at 13:31
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2@LucTouraille Actually, the boost docs don't explicitly say which header file to use: http://www.boost.org/doc/libs/1_55_0/libs/smart_ptr/scoped_ptr.htm - it's buried in example code – Barry Kelly Mar 26 '14 at 16:12
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There is no scoped_ptr in the standard C++ library. All C++11 smart pointers are in header <memory>. If you want boost::scoped_ptr then you need boost/scoped_ptr.hpp.
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