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flat_multiset&operator=(constflat_multiset&other); (1) (since C++23)
(implicitly declared)flat_multiset&operator=(flat_multiset&&other); (2) (since C++23)
(implicitly declared)flat_multiset&operator=(std::initializer_list<key_type>ilist); (3) (since C++23)Replaces the contents of the container adaptor with the contents of given argument.
1) Copy assignment operator. Replaces the contents with a copy of the contents of other. Effectively calls c=other.c;comp=other.comp;.
2) Move assignment operator. Replaces the contents with those of other using move semantics. Effectively calls c=std::move(other.c);comp=std::move(other.comp);.
3) Replaces the contents with those identified by initializer list ilist.
Parameters
other - another container adaptor to be used as source ilist - initializer list to be used as source Return value
*this
Complexity
1,2) Equivalent to that of operator= of the underlying container.
3) Linear in the size of *this and ilist.
Example
Run this code
#include<flat_set>#include<initializer_list>#include<print>intmain(){std::flat_multiset<int>x{1,2,3},y,z;constautow={4,5,6,7};std::println("Initially:");std::println("x = {}",x);std::println("y = {}",y);std::println("z = {}",z);y=x;// overload (1)std::println("Copy assignment copies data from x to y:");std::println("x = {}",x);std::println("y = {}",y);z=std::move(x);// overload (2)std::println("Move assignment moves data from x to z, modifying both x and z:");std::println("x = {}",x);std::println("z = {}",z);z=w;// overload (3)std::println("Assignment of initializer_list w to z:");std::println("w = {}",w);std::println("z = {}",z);}Output:
Initially: x = {1, 2, 3} y = {} z = {} Copy assignment copies data from x to y: x = {1, 2, 3} y = {1, 2, 3} Move assignment moves data from x to z, modifying both x and z: x = {} z = {1, 2, 3} Assignment of initializer_list w to z: w = {4, 5, 6, 7} z = {4, 5, 6, 7} See also