std::flat_multimap<Key,T,Compare,KeyContainer,MappedContainer>:: size
From cppreference.com
<
cpp
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container
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flat multimap
C++
Containers library
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(C++11)
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(C++26)
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(C++11)
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| Unordered associative | ||||
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(C++11)
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(C++11)
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(C++11)
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(C++11)
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| Adaptors | ||||
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(C++23)
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(C++23)
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(C++23)
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(C++23)
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(C++20)
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(C++23)
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| Iterator invalidation | ||||
| Member function table | ||||
| Non-member function table |
std::flat_multimap
|
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) |
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returns the maximum possible number of elements
(public member function) |
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