Re: Order of argument evaluation in C++, etc.

jhallen@world.std.com (Joseph H Allen) writes:


> foo(`x=7,`y=8) and foo(`y=8,`x=7) are equivalent.


> So do you evaluate them in order of appearance or in the order they are
> pushed on the stack (which probably depends on how the function was
> defined)?


chase@centerline.com (David Chase) wrote:
>Obviously, you evaluate them in the order of appearance. That
>will be most intuitive to the programmer, and should the programmer
>actually need this level of control, they have it.


I'd say leave it unspecified. If a programmer needs that level of control
they can just write them as separate statements in sequence. I'll go out
on a limb and assert that 99+% of all argument lists are completely
unaffected by order-of-evaluation, and that the ordering would be better
reserved for implicit doc.


I actually liked and used all of the old PL/I argument-list syntax
flexibility, though, and maybe that counts as a crank-poster warning these
days... :-)


Jim
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