Re: auto type for defaulted arguments? [Repost]
In the meantime I have opened an enhancement request: http://d.puremagic.com/issues/show_bug.cgi?id=10491 Henning Pohl has written a patch: https://github.com/D-Programming-Language/dmd/pull/2270 And Kenji has written some comments in Bugzilla, explaining why he doesn't like this ER. I usually trust Kenji judgement. So let's close down this idea? Bye, bearophile
auto type for defaulted arguments? [Repost]
(This is an extended repost of a message that I have put in
D.learn.)
Sometimes I have code like this:
struct VeryLongNamedStruct {}
void foo(in VeryLongNamedStruct x = VeryLongNamedStruct(1)) {}
void main() {}
Or even:
void bar(in TupleFoo x = TupleFoo(TupleBar(2), TupleSpam(3))) {}
In those cases something I'd like to use auto in the function
signature for the arguments that have a default value:
void foo(in auto x = VeryLongNamedStruct(1)) {}
Do you like? Is it safe enough? Is it useful enough? Is it too
much work to implement?
A bit more complex case:
void spam(T)(const x = Foo!T(4)) {}
Bye,
bearophile
Re: auto type for defaulted arguments? [Repost]
On Thursday, 27 June 2013 at 17:42:14 UTC, bearophile wrote:
(This is an extended repost of a message that I have put in
D.learn.)
Sometimes I have code like this:
struct VeryLongNamedStruct {}
void foo(in VeryLongNamedStruct x = VeryLongNamedStruct(1)) {}
void main() {}
Or even:
void bar(in TupleFoo x = TupleFoo(TupleBar(2), TupleSpam(3))) {}
In those cases something I'd like to use auto in the function
signature for the arguments that have a default value:
void foo(in auto x = VeryLongNamedStruct(1)) {}
Do you like? Is it safe enough? Is it useful enough? Is it too
much work to implement?
A bit more complex case:
void spam(T)(const x = Foo!T(4)) {}
Bye,
bearophile
Alias supposed to be used for such cases, but auto can be used in
paramenters too.
Re: auto type for defaulted arguments? [Repost]
On Thu, 27 Jun 2013 19:58:58 +0200
Maxim Fomin ma...@maxim-fomin.ru wrote:
On Thursday, 27 June 2013 at 17:42:14 UTC, bearophile wrote:
(This is an extended repost of a message that I have put in
D.learn.)
Sometimes I have code like this:
struct VeryLongNamedStruct {}
void foo(in VeryLongNamedStruct x = VeryLongNamedStruct(1)) {}
void main() {}
Or even:
void bar(in TupleFoo x = TupleFoo(TupleBar(2), TupleSpam(3))) {}
In those cases something I'd like to use auto in the function
signature for the arguments that have a default value:
void foo(in auto x = VeryLongNamedStruct(1)) {}
Do you like? Is it safe enough? Is it useful enough? Is it too
much work to implement?
I've noticed a need for that, too.
but auto can be used in paramenters too.
It can? Cool!
Re: auto type for defaulted arguments? [Repost]
On Thursday, 27 June 2013 at 20:24:46 UTC, Nick Sabalausky wrote: but auto can be used in paramenters too. It can? Cool! Actually I meant dmd does not support the feature now, but I see no reason for not supporting it.
