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Fix ADL Participation for swap in 105-copy-swap.md (#4925)

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Ali Ashkani Nia 2024-05-11 00:39:49 +03:30 committed by GitHub
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commit c1fb58dab7
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src/data/roadmaps/cpp/content/112-idioms/105-copy-swap.md
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@ -16,14 +16,14 @@ class String {
String(const String& other);
void swap(String& other) {
friend void swap(String& first, String& second) {
using std::swap; // for arguments-dependent lookup (ADL)
swap(size_, other.size_);
swap(buffer_, other.buffer_);
swap(first.size_, second.size_);
swap(first.buffer_, second.buffer_);
}
String& operator=(String other) {
swap(other);
swap(*this, other);
return *this;
}
};
@ -34,4 +34,4 @@ Using the copy-swap idiom:
- The left-hand side object's contents are swapped with the temporary copy.
- The temporary copy is destroyed, releasing any resources that were previously held by the left-hand side object.
This approach simplifies the implementation and provides strong exception safety, while reusing the copy constructor and destructor code.
This approach simplifies the implementation and provides strong exception safety, while reusing the copy constructor and destructor code.