Re: [Boost-users] [property_tree] Compilation Problem when #including <boost/property_tree/json_parser.hpp>

Subject: Re: [Boost-users] [property_tree] Compilation Problem when #including <boost/property_tree/json_parser.hpp>
From: Edward Diener (eldiener_at_[hidden])
Date: 2014-02-10 10:47:10

On 2/10/2014 5:29 AM, Adi Shavit wrote:
> 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 do not know where ERROR is occuring. But it is certainly not a good 
idea to have an enumeration name be a common all-uppercase name.

>
> 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.