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Text File  |  1990-10-02  |  2KB  |  108 lines
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  3. Weak pointers</A>
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  27. In <#523#><B>T3</B><#523#>, ``populations'' have been renamed to ``weak-sets''.
  28. This change was made in the belief that ``weak-set'' is a more
  29. intuitive name than ``population''.  The old names are still
  30. supported, but they will be removed in a future release.
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  33. <#524#><I>Weak-Sets</I><#524#><A ID="525"><tex2html_anchor_invisible_mark></A> provide a way to keep track of a collection of objects.
  34. They are sometimes known as <#526#>weak sets<#526#> because they behave much like
  35. sets, but an object in a weak-set may go away if the only pointer to
  36. the object is via the weak-set.  The garbage collector will remove
  37. such objects from weak-sets.
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