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Diffstat (limited to 'include/utility/pointer.h')
| -rw-r--r-- | include/utility/pointer.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/include/utility/pointer.h b/include/utility/pointer.h new file mode 100644 index 000000000..2e356ae2b --- /dev/null +++ b/include/utility/pointer.h @@ -0,0 +1,42 @@ +/* + * InspIRCd -- Internet Relay Chat Daemon + * + * Copyright (C) 2026 Sadie Powell <sadie@witchery.services> + * + * This file is part of InspIRCd. InspIRCd is free software: you can + * redistribute it and/or modify it under the terms of the GNU General Public + * License as published by the Free Software Foundation, version 2. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + + +#pragma once + +namespace insp +{ + /** Determines if the pointer in \p ptr1 is empty. + * @param ptr Either a shared_ptr<> or a weak_ptr<>. + */ + template <typename Ptr> + bool empty_ptr(const Ptr& ptr) + { + return same_ptr(ptr, {}); + } + + /** Determines if the pointer in \p ptr1 points to the same value as the pointer in \p ptr2. + * @param ptr1 Either a shared_ptr<> or a weak_ptr<>. + * @param ptr2 Either a shared_ptr<> or a weak_ptr<>. + */ + template <typename Ptr1, typename Ptr2 = Ptr1> + bool same_ptr(const Ptr1& ptr1, const Ptr2& ptr2) + { + return !ptr1.owner_before(ptr2) && !ptr2.owner_before(ptr1); + } +} |
