cs_avail.h 706 B

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  1. extern avail_p avails; /* The set of available expressions. */
  2. extern avail_p av_enter(); /* (avail_p avp, occur_p ocp, byte kind)
  3. * Puts the available expression in avp
  4. * in the list of available expressions,
  5. * if it is not already there. Add ocp to set of
  6. * occurrences of this expression.
  7. * If we have a new expression, we test whether
  8. * the result is saved. When this expression
  9. * recurs,we test if we can still use the
  10. * variable into which it was saved.
  11. * (Kind is the kind of the expression.)
  12. * Returns a pointer into the list.
  13. */
  14. extern clr_avails(); /* Release all space occupied by the old list
  15. * of available expressions.
  16. */