hash_multiset::load_factor (STL/CLR)

Counts the average elements per bucket.

    float load_factor();

Remarks

The member function returns (float)hash_multiset::size (STL/CLR)() / hash_multiset::bucket_count (STL/CLR)(). You use it to determine the average bucket size.

Example

// cliext_hash_multiset_load_factor.cpp 
// compile with: /clr 
#include <cliext/hash_set> 
 
typedef cliext::hash_multiset<wchar_t> Myhash_multiset; 
int main() 
    { 
    Myhash_multiset c1; 
    c1.insert(L'a'); 
    c1.insert(L'b'); 
    c1.insert(L'c'); 
 
// display initial contents " a b c" 
    for each (wchar_t elem in c1) 
        System::Console::Write(" {0}", elem); 
    System::Console::WriteLine(); 
 
// inspect current parameters 
    System::Console::WriteLine("bucket_count() = {0}", c1.bucket_count()); 
    System::Console::WriteLine("load_factor() = {0}", c1.load_factor()); 
    System::Console::WriteLine("max_load_factor() = {0}", 
        c1.max_load_factor()); 
    System::Console::WriteLine(); 
 
// change max_load_factor and redisplay 
    c1.max_load_factor(0.25f); 
    System::Console::WriteLine("bucket_count() = {0}", c1.bucket_count()); 
    System::Console::WriteLine("load_factor() = {0}", c1.load_factor()); 
    System::Console::WriteLine("max_load_factor() = {0}", 
        c1.max_load_factor()); 
    System::Console::WriteLine(); 
 
// rehash and redisplay 
    c1.rehash(100); 
    System::Console::WriteLine("bucket_count() = {0}", c1.bucket_count()); 
    System::Console::WriteLine("load_factor() = {0}", c1.load_factor()); 
    System::Console::WriteLine("max_load_factor() = {0}", 
        c1.max_load_factor()); 
    return (0); 
    } 
 

a b c bucket_count() = 16 load_factor() = 0.1875 max_load_factor() = 4 bucket_count() = 16 load_factor() = 0.1875 max_load_factor() = 0.25 bucket_count() = 128 load_factor() = 0.0234375 max_load_factor() = 0.25

Requirements

Header: <cliext/hash_set>

Namespace: cliext

See Also

Reference

hash_multiset (STL/CLR)

hash_multiset::bucket_count (STL/CLR)

hash_multiset::max_load_factor (STL/CLR)