Re: [Boost-users] Problems compiling Serialisation libs because o f Spirit problem

From: James Hughes (JHughes_at_[hidden])
Date: 2006-03-30 05:58:12

Some more information on this...

Looking at the headers that give the error, there appears to be an issue
with the result types returned from parsers....

boost/spirit/core/parser.hpp

template <typename DerivedT>
    struct parser
    {
        typedef DerivedT                embed_t;
        typedef DerivedT                derived_t;
        typedef plain_parser_category   parser_category_t;

        template <typename ScannerT>
        struct result
        {
            typedef typename match_result<ScannerT, nil_t>::type type;
        };

boost/spirit/core/primitives/numerics.hpp

struct sign_parser : public parser<sign_parser>
    {
        typedef sign_parser self_t;

        template <typename ScannerT>
        struct result 
        {
            typedef typename match_result<ScannerT, bool>::type type;
        };

The derived sign_parser class appears to want to 'override' the base class
struct result, but instead the compiler is giving an error. This would
appear to be a compiler fault, but I could be way off there - depends
whether this compiles in other circumstances!! I am still at loss to fix
this so all help gratefully received!

James

> -----Original Message-----
> From: James Hughes [mailto:JHughes_at_[hidden]]
> Sent: 30 March 2006 11:34
> To: 'boost-users_at_[hidden]'
> Subject: [Boost-users] Problems compiling Serialisation libs 
> because of
> Spirit problem
> 
> 
> Hello all,
> 
> I reported some time ago an issue with trying to compile the 
> Boost libs
> using an ARM cross compiler.
> 
> This has just started to have an impact as I wish to try out the
> Serialisation libs, and these are one of the areas with a 
> compile issue.
> 
> The following error is repeated over a considerable number of 
> files and
> seems to indicate a problem with Spirit. 
> 
> I am using the latest release version of Boost (1.33.1)- no 
> patches (are
> there any?) and a gcc v3.4.3 cross compiler to ARM architecture.
> 
> Does anyone have any suggestions? I have had no luck figuring 
> it out, but to
> be honest haven't spent a lot of time on it yet.
> 
> Rgds
> 
> James