Difference between revisions of "cpp/container/vector bool/swap"
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< cpp | container | vector bool
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{{cpp/container/vector_bool/title | swap}} | {{cpp/container/vector_bool/title | swap}} | ||
{{cpp/container/vector_bool/navbar}} | {{cpp/container/vector_bool/navbar}} | ||
| − | {{ | + | {{dcl begin}} |
| + | {{dcl header | vector}} | ||
| + | {{dcl rev multi | | ||
| + | | dcl1= | ||
static void swap(reference x, reference y); | static void swap(reference x, reference y); | ||
| + | | since2=c++20 | dcl2= | ||
| + | constexpr static void swap(reference x, reference y); | ||
}} | }} | ||
| + | {{dcl end}} | ||
Swaps the contents of {{tt|x}} and {{tt|y}}. | Swaps the contents of {{tt|x}} and {{tt|y}}. | ||
Revision as of 09:30, 9 August 2020
| Defined in header <vector>
|
||
static void swap(reference x, reference y); |
(until C++20) | |
| constexpr static void swap(reference x, reference y); |
(since C++20) | |
Swaps the contents of x and y.
Contents |
Parameters
| x | - | std::vector<bool>::reference value to swap with y
|
| y | - | std::vector<bool>::reference value to swap with x
|
Return value
(none)
Complexity
Constant.
Example
Run this code
#include <vector> #include <iostream> int main() { std::vector<bool> vb1{ 1,0 }; for (auto e : vb1) { std::cout << e << " "; } std::cout << '\n'; vb1.swap(vb1[0], vb1[1]); for (auto e : vb1) { std::cout << e << " "; } }
Output:
1 0 0 1
See also
| proxy class representing a reference to a single bool (class) | |
| swaps the contents (public member function of std::vector<T,Allocator>)
| |
| specializes the std::swap algorithm (function template) |
