Re: [boost] [program_options] Need help with remaining fails

From: Rene Rivera (grafik.list_at_[hidden])
Date: 2004-07-21 02:36:13

I decided to look at the CW8 results, and saw that you marked the 
unicode_test as an expected fail. So I thought I'd see if it could be fixed.

The first thing I did was to see why it was giving the warning:

### mwcc Compiler:
#      In: ..\boost\program_options\detail\utf8_codecvt_facet.hpp
#    From: ..\libs\program_options\test\unicode_test.cpp
# ------------------------------------------------------
#     155:  };
# Warning:   ^
# 
'boost::program_options::detail::utf8_codecvt_facet_wchar_t::do_length(const 
int &, const char *, const char *, unsigned int) const' hides inherited 
virtual function 'std::codecvt<wchar_t, char, int>::do_length(int &, 
const char *, const char *, unsigned int) const'

As it turns out, this is a valid warning. It's an error in the 
implementation. Specifically, as stated in 22.2.1.5 the signature for 
do_length is:

virtual int do_length(stateT&, const externT* from,
        const externT* end, size_t max) const;

This doesn't fix the failure, but I thought you'd like to know.

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