Type implementing an "open" hash map
Returns the number of subroutine calls on an open hash map (Specifications)
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
class(hashmap_type), | intent(in) | :: | map |
Returns the number of entries in a hash map (Specifications)
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
class(hashmap_type), | intent(in) | :: | map |
Returns the other data associated with the inverse table index Arguments: map - an open hash table key - the key associated with a map entry other - the other data associated with the key exists - a logical flag indicating whether an entry with that key exists
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
class(open_hashmap_type), | intent(inout) | :: | map | |||
type(key_type), | intent(in) | :: | key | |||
type(other_type), | intent(out) | :: | other | |||
logical, | intent(out), | optional | :: | exists |
Routine to allocate an empty map with HASHER as the hash function, 2SLOTS_BITS initial SIZE(map % slots), and SIZE(map % slots) limited to a maximum of 2MAX_BITS. All fields are initialized. Arguments: map - the open hash maap to be initialized hasher - the hash function to be used to map keys to slots slots_bits - the number of bits used to map to the slots status - an integer error status flag with the allowed values: success - no problems were found alloc_fault - map % slots or map % inverse could not be allocated array_size_error - slots_bits is less than default_bitd or greater than max_bits
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
class(open_hashmap_type), | intent(out) | :: | map | |||
procedure(hasher_fun) | :: | hasher | ||||
integer, | intent(in), | optional | :: | slots_bits | ||
integer(kind=int32), | intent(out), | optional | :: | status |
Returns a logical flag indicating whether KEY exists in the hash map Arguments: map - the hash map of interest key - the key of interest present - a logical flag indicating whether KEY exists in the hash map
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
class(open_hashmap_type), | intent(inout) | :: | map | |||
type(key_type), | intent(in) | :: | key | |||
logical, | intent(out) | :: | present |
Returns the number of entries relative to slots in a hash map Arguments: map - an open hash map
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
class(open_hashmap_type), | intent(in) | :: | map |
Inserts an entry into the hash table Arguments: map - the hash table of interest key - the key identifying the entry other - other data associated with the key conflict - logical flag indicating whether the entry key conflicts with an existing key
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
class(open_hashmap_type), | intent(inout) | :: | map | |||
type(key_type), | intent(in) | :: | key | |||
type(other_type), | intent(in), | optional | :: | other | ||
logical, | intent(out), | optional | :: | conflict |
Returns the total number of table probes on a hash map (Specifications)
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
class(hashmap_type), | intent(in) | :: | map |
Returns the number of allocated slots in a hash map (Specifications)
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
class(hashmap_type), | intent(in) | :: | map |
Changes the hashing method of the table entries to that of HASHER. Arguments: map the table to be rehashed hasher the hasher function to be used for the table
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
class(open_hashmap_type), | intent(inout) | :: | map | |||
procedure(hasher_fun) | :: | hasher |
Remove the entry, if any, that has the key Arguments: map - the table from which the entry is to be removed key - the key to an entry existed - a logical flag indicating whether an entry with the key was present in the original map
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
class(open_hashmap_type), | intent(inout) | :: | map | |||
type(key_type), | intent(in) | :: | key | |||
logical, | intent(out), | optional | :: | existed |
Change the other data associated with the key Arguments: map - the map with the entry of interest key - the key to the entry inthe map other - the new data to be associated with the key exists - a logical flag indicating whether the key is already entered in the map
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
class(open_hashmap_type), | intent(inout) | :: | map | |||
type(key_type), | intent(in) | :: | key | |||
type(other_type), | intent(in) | :: | other | |||
logical, | intent(out), | optional | :: | exists |
Returns the number of bits used to specify the number of allocated slots in a hash map (Specifications)
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
class(hashmap_type), | intent(in) | :: | map |
Returns the total number of ones based offsets of slot entries from their slot index for a hash map Arguments: map - an open hash map
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
class(open_hashmap_type), | intent(in) | :: | map |
type, extends(hashmap_type) :: open_hashmap_type
!! Version: Experimental
!!
!! Type implementing an "open" hash map
private
integer(int_index) :: index_mask = 2_int_index**default_bits-1
!! Mask used in linear addressing
type(open_map_entry_pool), pointer :: cache => null()
!! Pool of allocated open_map_entry_type objects
type(open_map_entry_list), pointer :: free_list => null()
!! free list of map entries
type(open_map_entry_ptr), allocatable :: inverse(:)
!! Array of bucket lists (inverses) Note max_elts=size(inverse)
integer(int_index), allocatable :: slots(:)
!! Array of indices to the inverse Note # slots=size(slots)
contains
procedure :: get_other_data => get_other_open_data
procedure :: init => init_open_map
procedure :: loading => open_loading
procedure :: map_entry => map_open_entry
procedure :: rehash => rehash_open_map
procedure :: remove => remove_open_entry
procedure :: set_other_data => set_other_open_data
procedure :: total_depth => total_open_depth
procedure :: key_test => open_key_test
final :: free_open_map
end type open_hashmap_type