Re: Looking for std::map::erase_if
On 20-3-2021 15:46, Alan Somers wrote:
It looks like it's in there. What code are you trying that doesn't work?
Hi Alan,
I thought so too, but all tries last 2 weeks did not result into
anything that got it compiling...
But could be that I did not try hard enough, real work is pulling a lot atm.
Code is at:
https://github.com/dillaman/ceph/blob/138d71fb0635682510cadda8e4ad5aaab3f39e44/src/librbd/api/Trash.cc#L299
Thanx,
--WjW
> grep erase_if /usr/include/c++/v1/map
void erase_if(map& c, Predicate pred);
// C++20
void erase_if(multimap& c, Predicate
pred); // C++20
void erase_if(map<_Key, _Tp, _Compare, _Allocator>& __c, _Predicate
__pred)
{ __libcpp_erase_if_container(__c, __pred); }
void erase_if(multimap<_Key, _Tp, _Compare, _Allocator>& __c,
_Predicate __pred)
{ __libcpp_erase_if_container(__c, __pred); }
On Sat, Mar 20, 2021 at 8:39 AM Willem Jan Withagen via
freebsd-hackers > wrote:
Hi,
[ Trying this on FBSD 12.2 ]
In the Ceph code new code uses std::map::erase_if.
Which is in Linux imported from
Anybody suggestions on libraries to get something matching??
Thanx,
--WjW
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Looking for std::map::erase_if
Hi, [ Trying this on FBSD 12.2 ] In the Ceph code new code uses std::map::erase_if. Which is in Linux imported from Anybody suggestions on libraries to get something matching?? Thanx, --WjW ___ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
Re: Looking for std::map::erase_if
Well, -std=c++20 even, it is that new. :)
That said, it's always hazardous to rely on experimental features, they are
effectively unsupported.
As shown on e.g. cppreference.com, you can use an equivalent function that
looks like:
auto old_size = c.size();
for (auto i = c.begin(), last = c.end(); i != last; ) {
if (pred(*i)) {
i = c.erase(i);
} else {
++i;
}
}
-Dimitry
> On 20 Mar 2021, at 16:22, Alan Somers wrote:
>
> I'm just guessing, but I think you should remove the "experimental" and
> build with -std=c++17 .
> -Alan
>
> On Sat, Mar 20, 2021 at 9:06 AM Willem Jan Withagen wrote:
>
>> On 20-3-2021 15:46, Alan Somers wrote:
>>
>> It looks like it's in there. What code are you trying that doesn't work?
>>
>> Hi Alan,
>>
>> I thought so too, but all tries last 2 weeks did not result into anything
>> that got it compiling...
>> But could be that I did not try hard enough, real work is pulling a lot
>> atm.
>>
>> Code is at:
>>
>> https://github.com/dillaman/ceph/blob/138d71fb0635682510cadda8e4ad5aaab3f39e44/src/librbd/api/Trash.cc#L299
>>
>> Thanx,
>> --WjW
>>
>>
>>> grep erase_if /usr/include/c++/v1/map
>> void erase_if(map& c, Predicate pred); //
>> C++20
>> void erase_if(multimap& c, Predicate pred);
>> // C++20
>> void erase_if(map<_Key, _Tp, _Compare, _Allocator>& __c, _Predicate __pred)
>> { __libcpp_erase_if_container(__c, __pred); }
>> void erase_if(multimap<_Key, _Tp, _Compare, _Allocator>& __c, _Predicate
>> __pred)
>> { __libcpp_erase_if_container(__c, __pred); }
>>
>> On Sat, Mar 20, 2021 at 8:39 AM Willem Jan Withagen via freebsd-hackers <
>> freebsd-hack...@freebsd.org> wrote:
>>
>>> Hi,
>>>
>>> [ Trying this on FBSD 12.2 ]
>>>
>>> In the Ceph code new code uses std::map::erase_if.
>>> Which is in Linux imported from
>>>
>>> Anybody suggestions on libraries to get something matching??
>>>
>>> Thanx,
>>> --WjW
>>> ___
>>> freebsd-hack...@freebsd.org mailing list
>>> https://lists.freebsd.org/mailman/listinfo/freebsd-hackers
>>> To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org
>>> "
>>>
>>
>>
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Re: Looking for std::map::erase_if
I'm just guessing, but I think you should remove the "experimental" and
build with -std=c++17 .
-Alan
On Sat, Mar 20, 2021 at 9:06 AM Willem Jan Withagen wrote:
> On 20-3-2021 15:46, Alan Somers wrote:
>
> It looks like it's in there. What code are you trying that doesn't work?
>
> Hi Alan,
>
> I thought so too, but all tries last 2 weeks did not result into anything
> that got it compiling...
> But could be that I did not try hard enough, real work is pulling a lot
> atm.
>
> Code is at:
>
> https://github.com/dillaman/ceph/blob/138d71fb0635682510cadda8e4ad5aaab3f39e44/src/librbd/api/Trash.cc#L299
>
> Thanx,
> --WjW
>
>
> > grep erase_if /usr/include/c++/v1/map
> void erase_if(map& c, Predicate pred); //
> C++20
> void erase_if(multimap& c, Predicate pred);
> // C++20
> void erase_if(map<_Key, _Tp, _Compare, _Allocator>& __c, _Predicate __pred)
> { __libcpp_erase_if_container(__c, __pred); }
> void erase_if(multimap<_Key, _Tp, _Compare, _Allocator>& __c, _Predicate
> __pred)
> { __libcpp_erase_if_container(__c, __pred); }
>
> On Sat, Mar 20, 2021 at 8:39 AM Willem Jan Withagen via freebsd-hackers <
> freebsd-hack...@freebsd.org> wrote:
>
>> Hi,
>>
>> [ Trying this on FBSD 12.2 ]
>>
>> In the Ceph code new code uses std::map::erase_if.
>> Which is in Linux imported from
>>
>> Anybody suggestions on libraries to get something matching??
>>
>> Thanx,
>> --WjW
>> ___
>> freebsd-hack...@freebsd.org mailing list
>> https://lists.freebsd.org/mailman/listinfo/freebsd-hackers
>> To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org
>> "
>>
>
>
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Re: Looking for std::map::erase_if
It looks like it's in there. What code are you trying that doesn't work?
> grep erase_if /usr/include/c++/v1/map
void erase_if(map& c, Predicate pred); //
C++20
void erase_if(multimap& c, Predicate pred);
// C++20
void erase_if(map<_Key, _Tp, _Compare, _Allocator>& __c, _Predicate __pred)
{ __libcpp_erase_if_container(__c, __pred); }
void erase_if(multimap<_Key, _Tp, _Compare, _Allocator>& __c, _Predicate
__pred)
{ __libcpp_erase_if_container(__c, __pred); }
On Sat, Mar 20, 2021 at 8:39 AM Willem Jan Withagen via freebsd-hackers <
freebsd-hack...@freebsd.org> wrote:
> Hi,
>
> [ Trying this on FBSD 12.2 ]
>
> In the Ceph code new code uses std::map::erase_if.
> Which is in Linux imported from
>
> Anybody suggestions on libraries to get something matching??
>
> Thanx,
> --WjW
> ___
> freebsd-hack...@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-hackers
> To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
>
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