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# rt.aaA

Implementation of associative arrays.
License:
Boost License 1.0.
Authors:
Martin Nowak

immutable int `_aaVersion`;
  AA version for debuggers, bump whenever changing the layout
struct `AA`;
  Opaque AA wrapper
pure nothrow @nogc size_t `_aaLen`(scope const AA `aa`);
  Determine number of entries in associative array.
void* `_aaGetY`(AA* `paa`, const TypeInfo_AssociativeArray `ti`, const size_t `valsz`, scope const void* `pkey`);
  Lookup *pkey in aa. Called only from implementation of (aa[key]) expressions when value is mutable.
  Parameters:

  AA* `paa` | associative array opaque pointer
  TypeInfo_AssociativeArray `ti` | TypeInfo for the associative array
  size_t `valsz` | ignored
  void* `pkey` | pointer to the key value

  Returns:
  if key was in the aa, a mutable pointer to the existing value. If key was not in the aa, a mutable pointer to newly inserted value which is set to all zeros
void* `_aaGetX`(AA* `paa`, const TypeInfo_AssociativeArray `ti`, const size_t `valsz`, scope const void* `pkey`, out bool `found`);
  Lookup *pkey in aa. Called only from implementation of require
  Parameters:

  AA* `paa` | associative array opaque pointer
  TypeInfo_AssociativeArray `ti` | TypeInfo for the associative array
  size_t `valsz` | ignored
  void* `pkey` | pointer to the key value
  bool `found` | true if the value was found

  Returns:
  if key was in the aa, a mutable pointer to the existing value. If key was not in the aa, a mutable pointer to newly inserted value which is set to all zeros
inout(void)* `_aaGetRvalueX`(inout AA `aa`, scope const TypeInfo `keyti`, const size_t `valsz`, scope const void* `pkey`);
  Lookup *pkey in aa. Called only from implementation of (aa[key]) expressions when value is not mutable.
  Parameters:

  AA `aa` | associative array opaque pointer
  TypeInfo `keyti` | TypeInfo for the key
  size_t `valsz` | ignored
  void* `pkey` | pointer to the key value

  Returns:
  pointer to value if present, null otherwise
inout(void)* `_aaInX`(inout AA `aa`, scope const TypeInfo `keyti`, scope const void* `pkey`);
  Lookup *pkey in aa. Called only from implementation of (key in aa) expressions.
  Parameters:

  AA `aa` | associative array opaque pointer
  TypeInfo `keyti` | TypeInfo for the key
  void* `pkey` | pointer to the key value

  Returns:
  pointer to value if present, null otherwise
bool `_aaDelX`(AA `aa`, scope const TypeInfo `keyti`, scope const void* `pkey`);
  Delete entry scope const AA, return true if it was present
pure nothrow void `_aaClear`(AA `aa`);
  Remove all elements from AA.
pure nothrow void* `_aaRehash`(AA* `paa`, scope const TypeInfo `keyti`);
  Rehash AA
pure nothrow inout(void[]) `_aaValues`(inout AA `aa`, const size_t `keysz`, const size_t `valsz`, const TypeInfo `tiValueArray`);
  Return a GC allocated array of all values
pure nothrow inout(void[]) `_aaKeys`(inout AA `aa`, const size_t `keysz`, const TypeInfo `tiKeyArray`);
  Return a GC allocated array of all keys
int `_aaApply`(AA `aa`, const size_t `keysz`, dg_t `dg`);
  foreach opApply over all values
int `_aaApply2`(AA `aa`, const size_t `keysz`, dg2_t `dg`);
  foreach opApply over all key/value pairs
Impl* `_d_assocarrayliteralTX`(const TypeInfo_AssociativeArray `ti`, void[] `keys`, void[] `vals`);
  Construct an associative array of type ti from keys and value
int `_aaEqual`(scope const TypeInfo `tiRaw`, scope const AA `aa1`, scope const AA `aa2`);
  compares 2 AAs for equality
nothrow hash_t `_aaGetHash`(scope const AA* `paa`, scope const TypeInfo `tiRaw`);
  compute a hash
struct `Range`;
  aaRange implements a ForwardRange

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