NOTES

   1 This is the Guile developer notice-board.  -*- change-log -*-
   2 ----------------------------------------------------------------------
   3 CONTENTS: Notes of various kinds which the Guile developers want to
   4 share among eachother, e. g., a memo about something which needs
   5 fixing.  Describing a certain problem here means that everyone is free
   6 to fix it when and as he wishes.  (Of course it can sometimes be suitable
   7 to discuss it first.)
   8
   9 RULES: Entries should have a date and the name of the author.  Entries
  10 should be sufficiently detailed to enable other members of the team to
  11 understand them, but they need not be comprehensible to people who
  12 don't spend much time on Guile.  This file should not go into
  13 snapshots or distributions, but is a strictly internal document.
  14
  15 CONVENTIONS: ChangeLog format. (Reverse chronological order.)
  16 ----------------------------------------------------------------------
  17
  18 Sun Mar  9 15:45:14 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>
  19
  20         * libguile/gc.c (scm_gc_sweep): The probability of collecting a
  21         free cell should be very low (only occurring when a signal has
  22         interrupted allocation).  Nevertheless, the GC immediately exits
  23         when the free cell test is enabled in the sweeper.  Where does
  24         this free cell come from?
  25
  26         * libguile/arbiters.c: Remove this file?  When we've implemented
  27         POSIX thread support, "arbiters" will be superfluous.
  28
  29 Thu Mar  6 00:54:59 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>
  30
  31         * libguile/unif.c: Introduce "fancy printing" for vectors.  "Fancy
  32         printing" is performed by the printer when the `fancyp' flag is
  33         set in the print state (see print.h).  One of its effects is that
  34         sequences should be printed with maximum `length' objects.  (This
  35         is currently only used in backtraces and error messages).
  36         This works for lists, but not yet for vectors and arrays.
  37
  38 Wed Mar  5 22:56:19 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>
  39
  40         * libguile/struct.c, libguile/struct.h, libguile/gc.c: Structs
  41         need reimplementation.  Both user interface and representation
  42         need to be improved.  E. g., the struct part of scm_gc_mark need
  43         to be a lot more efficient.  We should probably do this redesign
  44         when designing(/porting) the object system.
  45
  46         * libguile/symbols.c (SCM_SYMBOL_HASH): This is slot is currently
  47         not used for anything (except that it is used by symbol-hash).  I
  48         suppose it was originally intended to avoid doing multiple hashing
  49         steps when handling symbols.
  50
  51 Mon Mar  3 21:36:58 1997  Mikael Djurfeldt  <mdj@mdj.nada.kth.se>
  52
  53         * libguile/procprop.c: The current implementation of procedure
  54         properties of closures uses a special property slot
  55         (SCM_PROCPROPS (closure)), but primitive procedures don't have
  56         such a slot.  Setting or getting source properties for primitive
  57         procedures currently involves making fake closures.  These are
  58         stored in an alist => finding the properties of a primitive
  59         procedure is O (n primitive procedures with properties) which is
  60         unacceptable.
  61
  62