hash_set::bucket_count (STL/CLR)
Calcola il numero dei bucket.
int bucket_count();
Note
Le funzioni membro restituisce il numero corrente dei bucket.Viene utilizzato per determinare le dimensioni della tabella hash.
Esempio
// cliext_hash_set_bucket_count.cpp
// compile with: /clr
#include <cliext/hash_set>
typedef cliext::hash_set<wchar_t> Myhash_set;
int main()
{
Myhash_set 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);
}
Requisiti
intestazione: <cliext/hash_set>
Cliext diSpazio dei nomi: