Re: [Boost-users] [program_options] VC6 compile error 'illegal pure syntax, must be "=0"'

From: Stuart Dootson (stuart.dootson_at_[hidden])
Date: 2005-09-05 13:13:19

On 9/5/05, Gottenbos, Hennie <Hennie.Gottenbos_at_[hidden]> wrote:
>  
> Hi All, 
>   
> I am having problems using the [program_options] library from Boost 1.33.
> Using this simple program: 
>   
> #include <boost/program_options.hpp> 
>   
> int main(int argc, char* argv[])
> {
>  return 0;
> } 
>   
> I get compile errors like: 
>   
> options_description.hpp(156) : error C2258: illegal pure syntax, must be '=
> 0'
> options_description.hpp(156) : error C2252: 'm_default_line_length' : pure
> specifier can only be specified for functions
> options_description.hpp(159) : error C2065: 'm_default_line_length' :
> undeclared identifier 
>   
> This is the first time I'm using Boost. I have successfully developed a
> program that uses boost::filesystem but I have funny feeling this is a
> compiler limitation which means I can not use [program_options] on VC6. 
>   
> Can anyone confirm this so I can forget about program_options? 
>   
> Thanks! 
> Hennie. 

Looking at the appropriate regression test page
(http://engineering.meta-comm.com/boost-regression/1_33_0/user/program_options.html)
seems to imply VC6 & progam_options don't mix well...

My usual advise is to upgrade to VC7.1 if at all possible - it makes
Boost use a much more pleasant experience....

Stuart Dootson