[Issue 349] New: Function matching with enums is erratic

[Thomas Kuehne]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

d-bugmail at puremagic.com schrieb am 2006-09-15:
> http://d.puremagic.com/issues/show_bug.cgi?id=349

> Integer types are not implicitly convertible to enum types.  However, under
> certain conditions the process of matching functions to calls likes to think
> otherwise.
>
> ----------
> import std.stdio;
>
> enum Qwert { yuiop }
>
> void asdfg(Qwert hjkl) { writefln("Called hjkl(Qwert)"); }
> void asdfg(uint zxcvb) { writefln("Called hjkl(uint)"); }
>
> void main() {
>     int nm = 2;
>
>     asdfg(nm);                  // works
>     asdfg(cast(int) nm);        // works
>     asdfg(3);                   // fails
>     asdfg(cast(int) 3);         // fails
>     asdfg(3L);                  // fails
>     asdfg(cast(int) 3L);        // fails
>     asdfg(3 + 2);               // fails
>     asdfg(cast(int) (3 + 2));   // fails
>     asdfg(nm + 2);              // works
>     asdfg(cast(int) (nm + 2));  // works
>     asdfg(3 + nm);              // works
>     asdfg(cast(int) (3 + nm));  // works
> }

<snip>

> All of these arguments, except for 3L, are of type int.  You can see for
> yourself that int isn't implicitly convertible to Qwert by adding
>
>     Qwert qaz = nm;

<snip>

Added to DStress as
http://dstress.kuehne.cn/compile/e/enum_48_A.d
http://dstress.kuehne.cn/compile/e/enum_48_B.d
http://dstress.kuehne.cn/compile/e/enum_48_C.d
http://dstress.kuehne.cn/compile/e/enum_48_D.d
http://dstress.kuehne.cn/run/e/enum_49_A.d
http://dstress.kuehne.cn/run/e/enum_49_B.d
http://dstress.kuehne.cn/run/e/enum_49_C.d
http://dstress.kuehne.cn/run/e/enum_49_D.d

Thomas


-----BEGIN PGP SIGNATURE-----

iD8DBQFFEZ/6LK5blCcjpWoRAnRDAKCDBe4uz0URAuP5XeEK0T3nf7cHsQCfdPaQ
YU4T6MAdN15zqNbgMon4oZU=
=lN1Q
-----END PGP SIGNATURE-----