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C++ Unordered_set Library - load_factor
Description
It returns the current load factor in the unordered_set container.
Declaration
Following is the declaration for std::unordered_set::load_factor.
C++11
float load_factor() const noexcept;
Parameters
none
Return value
It returns the current load factor.
Exceptions
Exception is thrown if any element comparison object throws exception.
Please note that invalid arguments cause undefined behavior.
Time complexity
constant time.
Example
The following example shows the usage of std::unordered_set::load_factor.
#include <iostream> #include <unordered_set> int main () { std::unordered_set<int> myset; std::cout << "size = " << myset.size() << std::endl; std::cout << "bucket_count = " << myset.bucket_count() << std::endl; std::cout << "load_factor = " << myset.load_factor() << std::endl; std::cout << "max_load_factor = " << myset.max_load_factor() << std::endl; return 0; }
Let us compile and run the above program, this will produce the following result −
size = 0 bucket_count = 11 load_factor = 0 max_load_factor = 1
unordered_set.htm
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