5,321
edits
C++: Difference between revisions
→RAII
(→RAII) |
(→RAII) |
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* Copy assignment operator | * Copy assignment operator | ||
Rule of five | [[Wikipedia: Rule of three (C++ programming)#Rule of five | Rule of five]] | ||
* | * Move constructor | ||
* Move | * Move assignment operator | ||
{{hidden | Example RAII Class | | {{hidden | Example RAII Class | | ||
Copied from [https://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom stack overflow] | Copied from [https://stackoverflow.com/questions/3279543/what-is-the-copy-and-swap-idiom stack overflow] | ||
| Line 699: | Line 700: | ||
} | } | ||
// copy assignment | |||
dumb_array& operator=(dumb_array other) // (1) | |||
{ | |||
swap(*this, other); // (2) | |||
return *this; | |||
} | |||
// swap | |||
friend void swap(dumb_array& first, dumb_array& second) // nothrow | friend void swap(dumb_array& first, dumb_array& second) // nothrow | ||
{ | { | ||
| Line 710: | Line 720: | ||
} | } | ||
// move constructor | |||
dumb_array(dumb_array&& other) noexcept †† | dumb_array(dumb_array&& other) noexcept †† | ||
: dumb_array() // initialize via default constructor, C++11 only | : dumb_array() // initialize via default constructor, C++11 only | ||