Re: [Boost-users] [conversion] Using Lexical_cast to convert string to float

Subject: Re: [Boost-users] [conversion] Using Lexical_cast to convert string to float
From: Ryan McConnehey (mccorywork_at_[hidden])
Date: 2009-06-10 02:32:09

Steven Watanabe wrote:
> The problem is in the standard library.  (Tested with msvc 9.0 
> express--gcc 4.3.0 behaves sensibly).
So, Microsoft's implementation is off?  It wouldn't be that surprising 
though. :-)
> ss: true, val: 1.#INF
> ss: false, val: -9.25596e+061
It looks like the "3.4e350" gets converted to a valid value (for 
doubles) and the only way to determine if it was out of range is to do a 
cast on the stream itself.  Is this what lexical_cast does internally?

Ryan