std::priority_queue<T,Container,Compare>:: empty
From cppreference.net
<
cpp
|
container
|
priority queue
|
bool
empty
(
)
const
;
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||
Checks if the underlying container has no elements. Equivalent to:
return
c
.
empty
(
)
.
Contents |
Parameters
(none)
Return value
true if the underlying container is empty, false otherwise.
Complexity
Constant.
Example
Run this code
#include <cassert> #include <queue> int main() { std::priority_queue<int> queue; assert(queue.empty()); queue.push(42); assert(!queue.empty()); queue.pop(); assert(queue.empty()); }
See also
|
returns the number of elements
(public member function) |
|
|
(C++17)
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checks whether the container is empty
(function template) |