Hi,

On VS2010, the following code does not compile if I restore the commented out #include:

// #include <boost/property_tree/json_parser.hpp>

struct X

{
enum Labels { ERROR, ONE, TWO, THREE };
// problem => ^^^^^

};

void f()
{

X::Labels r = X::ERROR;
// problem => ^^^^^
}

The VS2010 errors are:

t.cpp(5): error C2059: syntax error : 'constant'

t.cpp(5): error C2143: syntax error : missing ';' before '}'
t.cpp(5): error C2238: unexpected token(s) preceding ';'

t.cpp(7): error C2059: syntax error : '}'
t.cpp(7): error C2143: syntax error : missing ';' before '}'

t.cpp(7): error C2059: syntax error : '}'
t.cpp(11): error C2589: 'constant' : illegal token on right side of '::'

t.cpp(11): error C2059: syntax error : '::'

It seems that somewhere inside the #include hierarchy the symbol ERROR is #defined to cause this code to fail.

Renaming ERROR to something else avoids this problem.

I think I tracked it into 'boost/spirit/home/classic/iterator/impl/file_iterator.ipp' but I'm not sure where exactly it is coming from.

Adi