* [v3 PATCH] Implement N4279, Improved insertion interface for unique-key maps.
@ 2015-07-20 23:09 Ville Voutilainen
2015-08-07 8:36 ` Jonathan Wakely
0 siblings, 1 reply; 3+ messages in thread
From: Ville Voutilainen @ 2015-07-20 23:09 UTC (permalink / raw)
To: libstdc++, gcc-patches
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Tested on Linux-PPC64.
2015-07-21 Ville Voutilainen <ville.voutilainen@gmail.com>
Implement N4279, Improved insertion interface for unique-key maps.
* include/bits/stl_map.h (try_emplace, insert_or_assign): New.
* include/bits/stl_tree.h (_M_get_insert_unique_pos,
_M_get_insert_equal_pos, _M_get_insert_hint_unique_pos,
_M_get_insert_hint_equal_pos): Make public.
* include/bits/unordered_map.h (try_emplace, insert_or_assign): New.
* testsuite/23_containers/map/modifiers/insert_or_assign/1.cc:
Likewise.
* testsuite/23_containers/map/modifiers/try_emplace/1.cc: Likewise.
* testsuite/23_containers/unordered_map/modifiers/insert_or_assign.cc:
Likewise.
* testsuite/23_containers/unordered_map/modifiers/try_emplace.cc:
Likewise.
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [v3 PATCH] Implement N4279, Improved insertion interface for unique-key maps.
2015-07-20 23:09 [v3 PATCH] Implement N4279, Improved insertion interface for unique-key maps Ville Voutilainen
@ 2015-08-07 8:36 ` Jonathan Wakely
2015-08-08 10:38 ` Jonathan Wakely
0 siblings, 1 reply; 3+ messages in thread
From: Jonathan Wakely @ 2015-08-07 8:36 UTC (permalink / raw)
To: Ville Voutilainen; +Cc: libstdc++, gcc-patches
On 21/07/15 00:49 +0300, Ville Voutilainen wrote:
>Tested on Linux-PPC64.
>
>2015-07-21 Ville Voutilainen <ville.voutilainen@gmail.com>
> Implement N4279, Improved insertion interface for unique-key maps.
> * include/bits/stl_map.h (try_emplace, insert_or_assign): New.
> * include/bits/stl_tree.h (_M_get_insert_unique_pos,
> _M_get_insert_equal_pos, _M_get_insert_hint_unique_pos,
> _M_get_insert_hint_equal_pos): Make public.
> * include/bits/unordered_map.h (try_emplace, insert_or_assign): New.
> * testsuite/23_containers/map/modifiers/insert_or_assign/1.cc:
> Likewise.
> * testsuite/23_containers/map/modifiers/try_emplace/1.cc: Likewise.
> * testsuite/23_containers/unordered_map/modifiers/insert_or_assign.cc:
> Likewise.
> * testsuite/23_containers/unordered_map/modifiers/try_emplace.cc:
> Likewise.
+ template <typename... _Args>
+ pair<iterator, bool>
Indent everything after 'template<...>' please.
+ try_emplace(const key_type& __k, _Args&&... __args)
+ {
+ iterator __i = lower_bound(__k);
+ if (__i == end() || key_comp()(__k, (*__i).first))
+ {
+ __i = emplace_hint(__i, std::piecewise_construct,
+ std::forward_as_tuple(__k),
+ std::forward_as_tuple(std::forward<_Args>(__args)...));
+ return {__i, true};
+ }
+ return {__i, false};
+ }
Add a blank line between functions please.
+ // move-capable overload
+ template <typename... _Args>
+ pair<iterator, bool>
+ try_emplace(key_type&& __k, _Args&&... __args)
+ template <typename _M>
_M isn't documented as a BADNAME but single character names like that make me
nervous, would _Obj or _Up be OK?
+ pair<iterator, bool>
+ insert_or_assign(const key_type& __k, _M&& __obj)
+ {
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [v3 PATCH] Implement N4279, Improved insertion interface for unique-key maps.
2015-08-07 8:36 ` Jonathan Wakely
@ 2015-08-08 10:38 ` Jonathan Wakely
0 siblings, 0 replies; 3+ messages in thread
From: Jonathan Wakely @ 2015-08-08 10:38 UTC (permalink / raw)
To: Ville Voutilainen; +Cc: libstdc++, gcc-patches
On 07/08/15 09:36 +0100, Jonathan Wakely wrote:
>On 21/07/15 00:49 +0300, Ville Voutilainen wrote:
>+ template <typename... _Args>
>+ pair<iterator, bool>
>
>Indent everything after 'template<...>' please.
>
>+ try_emplace(const key_type& __k, _Args&&... __args)
>+ {
>+ iterator __i = lower_bound(__k);
>+ if (__i == end() || key_comp()(__k, (*__i).first))
>+ {
>+ __i = emplace_hint(__i, std::piecewise_construct,
>+ std::forward_as_tuple(__k),
>+ std::forward_as_tuple(std::forward<_Args>(__args)...));
>+ return {__i, true};
>+ }
>+ return {__i, false};
>+ }
>
>Add a blank line between functions please.
>
>+ // move-capable overload
>+ template <typename... _Args>
>+ pair<iterator, bool>
>+ try_emplace(key_type&& __k, _Args&&... __args)
>
>
>
>+ template <typename _M>
>
>_M isn't documented as a BADNAME but single character names like that make me
>nervous, would _Obj or _Up be OK?
>
>+ pair<iterator, bool>
>+ insert_or_assign(const key_type& __k, _M&& __obj)
>+ {
>
P.S. I should have said it's OK for trunk with those changes.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2015-07-20 23:09 [v3 PATCH] Implement N4279, Improved insertion interface for unique-key maps Ville Voutilainen
2015-08-07 8:36 ` Jonathan Wakely
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