Re: [boost] [Review] GGL review starts today, November 5th

Subject: Re: [boost] [Review] GGL review starts today, November 5th
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2009-11-19 15:42:25

Brandon Kohn wrote:
>
> template<typename ReturnType, typename Geometry, typename Strategy>
> struct calculate_null
> {
>      static inline ReturnType apply(Geometry const& , Strategy const&)
>      {
>          return ReturnType();
>      }
> };
>
> In my test ReturnType was double. This would seem to silently compile
> and return garbage on these inputs. In practice on vs2008(
> VC9 ) these
> return values were 0 (with optimizations on) even though the return
> resolves to double();. I'm guessing other platforms won't be so lucky.

That is well defined to return built-in types zero-initialized.

_____
Rob Stewart                           robert.stewart_at_[hidden]
Software Engineer, Core Software      using std::disclaimer;
Susquehanna International Group, LLP  http://www.sig.com

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