Topic: Are there any existing enum.method()
Author: Nevin Liber <nevin@cplusplusguy.com>
Date: Sat, 26 Dec 2015 12:12:12 -0600
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On 26 December 2015 at 10:32, Nicol Bolas <jmckesson@gmail.com> wrote:
> Is there some reason why such a method specifically *needs* to be a
> member function? Given unified function call syntax, you're going to be
> seeing a lot more `f(x)` than `x.f()` in the future.
>
I would not assume that.
The only way users of a library can guarantee that they are calling the
correct function is to use the same call syntax that the library author
implemented, because f(x) may or may not call something different than
x.f(), and such a difference may, for instance, be dependent on something
as fragile as what headers are included.
Unfortunately, whenever I've brought this objection up in EWG, it's been
misconstrued as wanting to force my users to use a particular syntax. I
don't care what syntax my users use; I do care that they call what they
intend to call. But I digress...
--
Nevin ":-)" Liber <mailto:nevin@cplusplusguy.com <nevin@eviloverlord.com>>
+1-847-691-1404
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<div dir=3D"ltr"><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">=
On 26 December 2015 at 10:32, Nicol Bolas <span dir=3D"ltr"><<a href=3D"=
mailto:jmckesson@gmail.com" target=3D"_blank">jmckesson@gmail.com</a>></=
span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8e=
x;border-left:1px #ccc solid;padding-left:1ex"><div>Is there some reason wh=
y such a method specifically <i>needs</i> to be a member function? Given un=
ified function call syntax, you're going to be seeing a lot more `f(x)`=
than `x.f()` in the future.<br></div></blockquote></div><br>I would not as=
sume that.</div><div class=3D"gmail_extra"><br></div><div class=3D"gmail_ex=
tra">The only way users of a library can guarantee that they are calling th=
e correct function is to use the same call syntax that the library author i=
mplemented, because f(x) may or may not call something different than x.f()=
, and such a difference may, for instance, be dependent on something as fra=
gile as what headers are included.</div><div class=3D"gmail_extra"><br></di=
v><div class=3D"gmail_extra">Unfortunately, whenever I've brought this =
objection up in EWG, it's been misconstrued as wanting to force my user=
s to use a particular syntax.=C2=A0 I don't care what syntax my users u=
se; I do care that they call what they intend to call.=C2=A0 But I digress.=
...<br>-- <br><div><div dir=3D"ltr">=C2=A0Nevin ":-)" Liber=C2=A0 =
<mailto:<a href=3D"mailto:nevin@eviloverlord.com" target=3D"_blank">nevi=
n@cplusplusguy.com</a>>=C2=A0 <a href=3D"tel:%2B1-847-691-1404" value=3D=
"+18476911404" target=3D"_blank">+1-847-691-1404</a><br></div></div>
</div>
</div>
<p></p>
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