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Subject: Re: [boost] [boost::endian] Request for comments/interest
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2010-05-27 10:29:40

vicente.botet wrote:
> Rob Stewart wrote:
> > I don't see any type safety problems in my original or
> > hybrid APIs.
> The problem is that we don't know the endiannes of the types
> int32_t or long. This depends on the operation you have
> performed on your code. E.g.

Endianness is not part of the type, so referring to type safety mislead me.

> int32_t wire(/* from wire */);
> long l1;
> long l2;
> to_big_endian(l1, l2);
> to_big_endian(l2, wire);
> With the typed endians this is not possible.
> big32_t wire(/* from wire */);
> long l1;
> long l2;
> l2=l1; // no endian change as both are native
> wire=l2; // conversion to big from native.

That's a sensible concern and reason to provide such types (without the operators) along with the less safe functions.

Rob Stewart robert.stewart_at_[hidden]
Software Engineer, Core Software using std::disclaimer;
Susquehanna International Group, LLP

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