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Editorial Team
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Asked: 2026-05-31T19:10:06+00:00

I have a header file. In this header I want to use a map

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I have a header file. In this header I want to use a map for a class. But after I include I get a no matching function error, because I have a copy() function in the project(really big project). I saw on this website http://www.sgi.com/tech/stl/download.html that map contains a using std::copy so I guess it collides with that.

I cannot make any changes to the copy function, so is there a way I can use map in this header file ? (no other place). Is there a way so my copy functions don’t collide ?

I use Visual Studio 2008 on Windows 7.

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1 Answer

  1. Editorial Team

    The error message suggests that your function is not visible to the translation unit, so make sure you include the header.

    Also, I doubt <map> has anything like using std::copy. You sure about this one?

    In algobase.h (which is not standard C++), the using directives are parsed only if __STL_USE_NAMESPACES is defined. You should undefine it before including the header:

    #undef __STL_USE_NAMESPACES
#include "algobase.h"
#endif
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