On 2/3/25 15:28, Avi Kivity via Std-Proposals wrote:
> On Mon, 2025-02-03 at 13:05 +0100, Marcin Jaczewski via Std-Proposals wrote:
>> pon., 3 lut 2025 o 12:50 Frederick Virchanza Gotham via Std-Proposals
>> <std-proposals_at_[hidden] <mailto:std-
>> proposals_at_[hidden]>> napisał(a):
>>>
>>> On Mon, Feb 3, 2025 at 11:14 AM Andrey Semashev wrote:
>>>>
>>>>
>>>> It is not. A forward declaration would suffice.
>>>
>>>
>>> But I'll be need forward declarations for other stuff like "std::less"
>>> and "std::allocator":
>>>
>>> namespace std {
>>> template<class T> class less;
>>> template<class T> class allocator;
>>> template< class Key, class Compare = less<Key>, class
>>> Allocator = allocator<Key> > class set;
>>> }
>>>
>>> typedef std::set<unsigned> IndexSet;
>>
>> Then problem is not that you need "aliases" but that std types are a
>> pain to forward declare.
>> Because the code you show here is invalid as for most standard libs
>> this is not a declaration of `set`.
>>
>> Question is could standard fix it and allow users to have a way to
>> forward declare standard classes
>> without including whole implementation?
>> We already have `<iosfwd>` could standard mandate a similar header for
>> the rest of stdlib?
>
>
> import std;

Modules don't exist.