std::stack<T,Container>:: empty
From cppreference.net
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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 <stack> int main() { std::stack<int> stack; assert(stack.empty()); stack.push(42); assert(!stack.empty()); stack.pop(); assert(stack.empty()); }
See also
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returns the number of elements
(public member function) |
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(C++17)
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checks whether the container is empty
(function template) |