Where is shared ptr

Question

I am so frustrated right now after several hours trying to find where shared ptr is located  None of the examples I see show complete code to include the headers for shared ptr  and working   Simply stating std  tr1 and  lt memory gt  is not helping at all  I have downloaded boosts and all but still it doesn t show up   Can someone help me by telling exactly where to find it   Thanks for letting me vent my frustrations   EDIT  I see my title has been changed  Sorry about that  So    it was also because it was not clear to me that shared ptr is  C   version dependant  --  that s why I did not state my environment --  therefore probably why it was so difficult for me to find it   I am working on MSVS2008   EDIT 2  I don t know why   but I was including  memory  and  boost tr1 memory hpp  and  boost tr1 tr1 memory  while looking everywhere for the shared ptr   of course  i couldn t   Thanks for all the responses

User · Accepted Answer

There are at least three places where you may find shared_ptr:

If your C++ implementation supports C++11 (or at least the C++11 shared_ptr), then std::shared_ptr will be defined in <memory>.
If your C++ implementation supports the C++ TR1 library extensions, then std::tr1::shared_ptr will likely be in <memory> (Microsoft Visual C++) or <tr1/memory> (g++'s libstdc++). Boost also provides a TR1 implementation that you can use.
Otherwise, you can obtain the Boost libraries and use boost::shared_ptr, which can be found in <boost/shared_ptr.hpp>.

User · Answer

Boost Getting Started  If you want to use it from Boost TR1 instead  shared ptr Example

User · Answer

If your e looking bor boost s shared ptr  you could have easily found the answer by googling shared ptr  following the links to the docs  and pulling up a complete working example such as this   In any case  here is a minimalistic complete working example for you which I just hacked up    include  lt boost shared ptr hpp gt   struct MyGizmo       int n       int main         boost  shared ptr lt MyGizmo gt  p new MyGizmo       return 0      In order for the  include to find the header  the libraries obviously need to be in the search path   In MSVC  you set this in Project Settings Configuration Properties C C   Additional Include Directories   In my case  this is set to C  Program Files  x86  boost boost 1 42

User · Answer

for VS2008 with feature pack update  shared ptr can be found under namespace std  tr1   std  tr1  shared ptr lt int gt  MyIntSmartPtr   new int    of  if you had boost installation path  for example   C  Program Files Boost boost 1 40 0  added to your IDE settings    include  lt boost shared ptr hpp gt

[c++] Where is shared_ptr?

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