std::flat_multimap<Key,T,Compare,KeyContainer,MappedContainer>::size
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< cpp | container | flat multimap
C++
Containers library
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(C++26)
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(C++23)
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(C++23)
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(C++23)
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| Non-member function table |
size_type size() const noexcept; |
(since C++23) | |
Returns the number of elements in the container adaptor. Equivalent to:
return
c
.keys.size()
Parameters
(none)
Return value
The number of elements in the container adaptor.
Complexity
Constant.
Example
Run this code
#include <cassert> #include <flat_map> int main() { std::flat_multimap<int, char> nums{{1, 'a'}, {1, 'b'}, {2, 'c'}, {2, 'd'}}; assert(nums.size() == 4); }
See also
| checks whether the container adaptor is empty (public member function) |
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(C++17)(C++20)
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returns the size of a container or array (function template) |
| returns the maximum possible number of elements (public member function) |