On Wednesday, 22 January 2020 at 15:11:09 UTC, Jacob Carlborg
wrote:
BTW, why don't you implement `opCmp` with the built-in
comparison operators. Those are going to get lower to a call to
`__cmp`. Something like this:
int opCmp()(const scope typeof(this) that) const @nogc
{
auto a =
On Wednesday, 22 January 2020 at 15:11:09 UTC, Jacob Carlborg
wrote:
int opCmp()(const scope typeof(this) that) const @nogc
{
auto a = this[];
auto b = that[];
return a < b ? -1 : (a > b);
}
--
/Jacob Carlborg
I see. Good to know. Thanks
On Wednesday, January 22, 2020 7:50:01 AM MST Per Nordlöw via Digitalmars-d-
learn wrote:
> On Wednesday, 22 January 2020 at 10:19:38 UTC, Jacob Carlborg
>
> wrote:
> > That looks like it's for internal use. There is a `compare`
> > method in the `TypeInfo` of each type.
>
> Will that incur an
On Wednesday, 22 January 2020 at 14:50:01 UTC, Per Nordlöw wrote:
Will that incur an extra runtime cost compared to __cmp?
I haven't looked at how `__cmp` is implemented but I would guess
there's some extra overhead. Need to get type info and then there
will be several virtual method calls
On Wednesday, 22 January 2020 at 10:19:38 UTC, Jacob Carlborg
wrote:
That looks like it's for internal use. There is a `compare`
method in the `TypeInfo` of each type.
Will that incur an extra runtime cost compared to __cmp?
On Wednesday, 22 January 2020 at 08:44:15 UTC, Per Nordlöw wrote:
I just found
import core.internal.array.comparison : __cmp;
I presume that is a better alternative if Phobos' independence
is desired.
That looks like it's for internal use. There is a `compare`
method in the `TypeInfo`
On Wednesday, 22 January 2020 at 08:30:55 UTC, Per Nordlöw wrote:
is a suitable definition of `opCmp` for `SSOString` in terms of
independence of Phobos' `std.algorithm.comparison.cmp`.
I just found
import core.internal.array.comparison : __cmp;
I presume that is a better alternative if
I've implement a small size optimized `string` at
https://github.com/nordlow/phobos-next/blob/c35fa4052738af0cd7ad39a9fa715b5ec29c7bba/src/nxt/sso_string.d
I'm now wondering whether or not its definition of comparison at
