Re: [boost] [program_options] PATCH: fix VC8 runtime assertion error in options_description.cpp

From: Vladimir Prus (ghost_at_[hidden])
Date: 2006-04-18 04:07:28

Trent Nelson wrote:

> Hi,
> 
> With regards to the following lines in the latest version (1.16) of
> program_options's options_description.cpp:
> 
> 395:    line_end = line_begin + line_length;
> 396:    if (line_end > par_end)
> 397:    {
> 398:        line_end = par_end;
> 399:    }
> 
> Line 395 causes VC8 to throw a runtime assertion error when processing
> the last line of a multiline option description.  This is because
> 'line_begin + line_length' will exceed the actual length of the string,
> and it seems VC8 is pretty intent on not letting that happen, despite
> the fact we correct it in following line.

Hi Trent,
can you provide me is a minimal example that reproduces this problem? I've
tried multiline description just now, and did not get any assertion. 

I'd prefer to have a testcase for this bug before fixing it.

Thanks in adavnce,
Volodya