{}
{   The purpose of this request is to fetch a pointer to a structure which
{ is owned by a file_access_procedure (FAP).}
{   This request allows the fap to retrieve a pointer to a structure which is}
{ peculiar to the instance of the file being accessed, i.e. peculiar}
{ to a file_identifier.}
{   This request will return abnormal status if the structure pointer for}
{ the fap is NIL.}
{}
{       AMP$FETCH_FAP_POINTER (FILE_IDENTIFIER, LAYER_NUMBER,
{         STRUCTURE_POINTER, STATUS)
{}
{ FILE_IDENTIFIER: (input) This parameter specifies the file access}
{       identifier established when the file was opened.}
{}
{ LAYER_NUMBER: (input) This parameter specifies the identity of the fap.}
{       This parameter is the same layer_number which was passed to the fap}
{       as an actual parameter.}
{}
{ STRUCTURE_POINTER: (output) This parameter specifies the address of}
{       a structure the fap previously stored using the amp$store_fap_pointer}
{       request.}
{}
{ STATUS: (output) This parameter specifies the request status.}
{       CONDITION:  ame$ring_validation_error,
{                   ame$improper_file_id,
{                   ame$nil_structure_pointer.
{       IDENTIFIER: amc$access_method_id.
{}
