map in c++ causes error - c++

Question

I have header file. I want a map object added to one of the structures. So I included
#include<map>
and compiled the program (note I did not use map object I just included it) and I got the following error
/usr/include/c++/4.7/bits/stl_map.h:115:28: error: macro "value_compare" requires 2 arguments, but only 1 given
/usr/include/c++/4.7/bits/stl_map.h:733:45: error: macro "value_compare" requires 2 arguments, but only 1 given
In file included from /usr/include/c++/4.7/map:62:0,
from ../optimizer_types.h:16,
from ../main.cpp:20:
/usr/include/c++/4.7/bits/stl_multimap.h:115:28: error: macro "value_compare" requires 2 arguments, but only 1 given
/usr/include/c++/4.7/bits/stl_multimap.h:656:45: error: macro "value_compare" requires 2 arguments, but only 1 given
In file included from /usr/include/c++/4.7/map:61:0,
from ../optimizer_types.h:16,
from ../main.cpp:20:
/usr/include/c++/4.7/bits/stl_map.h:113:11: error: invalid use of non-static data member 'std::map<_Key, _Tp, _Compare, _Alloc>::value_compare::comp'
/usr/include/c++/4.7/bits/stl_map.h:116:4: error: from this location
/usr/include/c++/4.7/bits/stl_map.h:116:9: error: '__c' was not declared in this scope
/usr/include/c++/4.7/bits/stl_map.h:116:12: error: a function call cannot appear in a constant-expression
/usr/include/c++/4.7/bits/stl_map.h:116:12: error: expected ';' at end of member declaration
/usr/include/c++/4.7/bits/stl_map.h:116:14: error: expected unqualified-id before '{' token
/usr/include/c++/4.7/bits/stl_map.h: In member function 'std::map<_Key, _Tp, _Compare, _Alloc>::value_compare std::map<_Key, _Tp, _Compare, _Alloc>::value_comp() const':
/usr/include/c++/4.7/bits/stl_map.h:733:46: error: expected primary-expression before ';' token
In file included from /usr/include/c++/4.7/map:62:0,
from ../optimizer_types.h:16,
from ../main.cpp:20:
/usr/include/c++/4.7/bits/stl_multimap.h: At global scope:
/usr/include/c++/4.7/bits/stl_multimap.h:113:11: error: invalid use of non-static data member 'std::multimap<_Key, _Tp, _Compare, _Alloc>::value_compare::comp'
/usr/include/c++/4.7/bits/stl_multimap.h:116:4: error: from this location
/usr/include/c++/4.7/bits/stl_multimap.h:116:9: error: '__c' was not declared in this scope
/usr/include/c++/4.7/bits/stl_multimap.h:116:12: error: a function call cannot appear in a constant-expression
/usr/include/c++/4.7/bits/stl_multimap.h:116:12: error: expected ';' at end of member declaration
/usr/include/c++/4.7/bits/stl_multimap.h:116:14: error: expected unqualified-id before '{' token
/usr/include/c++/4.7/bits/stl_multimap.h: In member function 'std::multimap<_Key, _Tp, _Compare, _Alloc>::value_compare std::multimap<_Key, _Tp, _Compare, _Alloc>::value_comp() const':
/usr/include/c++/4.7/bits/stl_multimap.h:656:46: error: expected primary-expression before ';' token
As an experiment I moved the include to a cpp file and it was compiling properly.
What could be the reason

Answer 1

Try this:
#ifdef value_compare
#undefine value_compare // std::map header doesn't like this
#endif
#include <map>
It's not very flexible (or pretty) but it should get you through this :(
Edit: Either way, the problem is not including map, but the earlier include/code that defined value_compare macro. Is it a C header? (I doubt a C++ would define a macro with this name, as value_compare is an important part of the C++ standard library).