Let integers use up 2 tags to give them one extra bit and double their range.

[bpt/emacs.git] / src / ChangeLog

diff --git a/src/ChangeLog b/src/ChangeLog
index 80e772d..0bd5d83 100644 (file)
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@@ -1,3 +1,31 @@
+2009-11-06  Stefan Monnier  <monnier@iro.umontreal.ca>
+
+       Let integers use up 2 tags to give them one extra bit and thus double
+       their range.
+       * lisp.h (USE_2_TAGS_FOR_INTS): New macro.
+       (LISP_INT_TAG, case_Lisp_Int, LISP_STRING_TAG, LISP_INT_TAG_P):
+       New macros.
+       (enum Lisp_Type): Use them.  Give explicit values.
+       (Lisp_Type_Limit): Remove.
+       (XINT, XUINT, make_number) [!USE_LISP_UNION_TYPE]:
+       (MOST_NEGATIVE_FIXNUM, MOST_POSITIVE_FIXNUM, INTMASK):
+       Pay attention to USE_2_TAGS_FOR_INTS.
+       (INTEGERP): Use LISP_INT_TAG_P.
+       * fns.c (internal_equal): Simplify the default case.
+       (sxhash): Use case_Lisp_Int.
+       * data.c (wrong_type_argument): Don't check against Lisp_Type_Limit
+       any more.
+       (Ftype_of): Use case_Lisp_Int.
+       (store_symval_forwarding): Take into account the fact that Ints can
+       now have more than one tag.
+       * buffer.c (syms_of_buffer): Use LISP_INT_TAG.
+       buffer_slot_type_mismatch):
+       * xfaces.c (face_attr_equal_p):
+       * print.c (print_object):
+       * alloc.c (mark_maybe_object, mark_object, survives_gc_p):
+       Use case_Lisp_Int.
+
+
 2009-11-06  Eli Zaretskii  <eliz@gnu.org>
 
        * s/msdos.h (SYSTEM_PURESIZE_EXTRA): Reduce by further 30K.