RepoMirrors/tdesktop
1
0
Fork 0
mirror of https://github.com/telegramdesktop/tdesktop synced 2025-01-28 02:03:35 +00:00
Code Issues Projects Releases Wiki Activity

Fix index_based_iterator for const containers.

Browse Source
This commit is contained in:
John Preston 2019-02-17 15:49:24 +04:00
parent 193e454fd4
commit 4d987f7278
1 changed files with 14 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
Telegram/SourceFiles/base/index_based_iterator.h
View File

@ -18,12 +18,20 @@ public:
using value_type = typename Container::value_type;
using difference_type = typename Container::difference_type;
using pointer = typename Container::pointer;
using reference = typename Container::reference;
using pointer = std::conditional_t<
std::is_const_v<Container>,
typename Container::const_pointer,
typename Container::pointer>;
using reference = std::conditional_t<
std::is_const_v<Container>,
typename Container::const_reference,
typename Container::reference>;
using base_type = std::conditional_t<
std::is_const_v<Container>,
typename Container::const_iterator,
typename Container::iterator>;
index_based_iterator(
Container *container,
typename Container::iterator impl)
index_based_iterator(Container *container, base_type impl)
: _container(container)
, _index(impl - _container->begin()) {
}
@ -99,7 +107,7 @@ public:
return !(*this < other);
}
typename Container::iterator base() const {
base_type base() const {
return _container->begin() + _index;
}