Re: Bytes' order with different C++ compilers

On May 11, 11:40 pm, Ulysses4e...@[EMAIL PROTECTED]
 wrote:
> Sorry, I've got a question closely connected with this topic. Where
> could I find the direct instruction that C++ compiler is not allowed
> to manilupate the bytes' oreder in representation of numbers for its
> free will. It could seem obivous for someone but not for me. I mean I
> want be shure that on the same hardware platform different C++
> comilers will expose the same bytes' order (if the platform itself
> operates with fixed bytes' order of course).
>
You should find that different compilers for the same O/S on the same
H/W platform have the same byte order, as that use usually an
architectural issue on the m/c, and they tend to work one way or the
other. However, you can't rely on them having the same word size, or
the same bit order - and that last can even differ between compiler
versions (from painful experience).

You can't be too certain about byte orders under different O/S - some
CPUs have the ability to run in different byte orders, and the O/S
picks which one it wants. It is possible that an O/S could offer the
facility for individual programs could run with different byte orders,
though I haven't yet come across a system that actually offers that.
But if one does, then all bets about byte ordering between different
compilers are off.

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