Re: [Boost-users] program_options: accepting NaNs for doubles

Subject: Re: [Boost-users] program_options: accepting NaNs for doubles
From: Rhys Ulerich (rhys.ulerich_at_[hidden])
Date: 2011-08-11 14:16:45

Responding to my own question...

> program_options does not accept NaN or Inf as valid double input.
>
> 1) Does this count as a bug?

It seems yes as the root cause appears to be a (now fixed for 1.48)
bug in lexical_cast (https://svn.boost.org/trac/boost/ticket/5689).  I
have filed https://svn.boost.org/trac/boost/ticket/5776 against
program_options with a milestone matching the lexical_cast bug.

> 2) Can anyone suggest a workaround (shy of using string-based parameters and
> calling strtod myself)?

lexical_cast would be a natural choice were it not for the above bug.

Cheers,
Rhys