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AK: Simplify constructors and conversions from nullptr_t
Problem: - Many constructors are defined as `{}` rather than using the ` = default` compiler-provided constructor. - Some types provide an implicit conversion operator from `nullptr_t` instead of requiring the caller to default construct. This violates the C++ Core Guidelines suggestion to declare single-argument constructors explicit (https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#c46-by-default-declare-single-argument-constructors-explicit). Solution: - Change default constructors to use the compiler-provided default constructor. - Remove implicit conversion operators from `nullptr_t` and change usage to enforce type consistency without conversion.
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105 changed files with 300 additions and 244 deletions
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@ -37,7 +37,7 @@ namespace AK {
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template<typename ListType, typename ElementType>
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class SinglyLinkedListIterator {
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public:
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SinglyLinkedListIterator() { }
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SinglyLinkedListIterator() = default;
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bool operator!=(const SinglyLinkedListIterator& other) const { return m_node != other.m_node; }
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SinglyLinkedListIterator& operator++()
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{
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@ -78,7 +78,7 @@ private:
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};
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public:
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SinglyLinkedList() { }
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SinglyLinkedList() = default;
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~SinglyLinkedList() { clear(); }
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bool is_empty() const { return !head(); }
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