# Method _refs()

Method _refs

  `int _refs(string|array|mapping|multiset|function(:void)|object|program o)`

Description

  Return the number of references o has.

  It is mainly meant for debugging the Pike runtime, but can also be used to control memory usage.

Note

  Note that the number of references will always be at least one since the value is located on the stack when this function is executed.

See also

  _next(), _prev()