From: Mark Rodgers (mark.rodgers_at_[hidden])
Date: 2000-06-06 14:40:21
From: Don Waugaman <dpw_at_[hidden]>
>
> Could we accomodate both approaches from the same interface? I'm
> thinking here of having a stream_cast(std::nothrow) option, somewhat
> like how the new operator works.
>
> template<typename Target, typename Source>
> inline Target stream_cast(Source arg, std::nothrow_t &)
>
> This would allow use of the throwing stream_cast without qualification,
> and allow the programmer to select the non-throwing stream_cast when
> appropriate. It uses a familiar mechanism to differentiate between
> the two alternatives.
>
> Thoughts?
I'm sorry, I don't appear to have made myself clear. I was indeed
intending to support both options, but was suggesting the default
argument be the differentiator, rather than a "useless" nothrow_t.
template<typename Target, typename Source>
Target stream_cast(const Source &arg)
// throws exception on error
template<typename Target, typename Source>
Target stream_cast(const Source &arg, const Target &def)
// returns def on error
Mark