Mercurial > hg > xemacs-beta
comparison src/lisp.h @ 5582:873d7425c1ad
Change integer to fixnum in a few places where it wasn't possible mechanically.
src/ChangeLog addition:
2011-10-09 Aidan Kehoe <kehoea@parhasard.net>
Do a couple of non-mechanical things that would otherwise have
been included in the last change.
* data.c:
* data.c (Ftype_of):
Return Qfixnum for fixnums, not Qinteger.
* lisp.h (MOST_POSITIVE_FIXNUM):
Delete an obsolete comment here.
man/ChangeLog addition:
2011-10-09 Aidan Kehoe <kehoea@parhasard.net>
* internals/internals.texi (Top):
* internals/internals.texi (Authorship of XEmacs):
* internals/internals.texi (Modules for Other Aspects of the Lisp Interpreter and Object System):
* internals/internals.texi (Introduction to Writing C Code):
* internals/internals.texi (Working with Lisp Objects):
* internals/internals.texi (Adding Global Lisp Variables):
* internals/internals.texi (The XEmacs Object System (Abstractly Speaking)):
* internals/internals.texi (How Lisp Objects Are Represented in C):
* internals/internals.texi (Allocation of Objects in XEmacs Lisp):
* internals/internals.texi (Introduction to Allocation):
* internals/internals.texi (GCPROing):
* internals/internals.texi (mark_object):
* internals/internals.texi (sweep_bit_vectors_1):
* internals/internals.texi (Fixnums and Characters):
* internals/internals.texi (Future Work -- Unicode):
Say fixnum rather than integer when specifically talking about
fixed-width Lisp integers.
author | Aidan Kehoe <kehoea@parhasard.net> |
---|---|
date | Sun, 09 Oct 2011 10:39:09 +0100 |
parents | 56144c8593a8 |
children | 10f179710250 |
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5581:56144c8593a8 | 5582:873d7425c1ad |
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1675 #define GCBITS 2 | 1675 #define GCBITS 2 |
1676 #define FIXNUM_GCBITS 1 | 1676 #define FIXNUM_GCBITS 1 |
1677 | 1677 |
1678 #define FIXNUM_VALBITS (BITS_PER_EMACS_INT - FIXNUM_GCBITS) | 1678 #define FIXNUM_VALBITS (BITS_PER_EMACS_INT - FIXNUM_GCBITS) |
1679 #define VALBITS (BITS_PER_EMACS_INT - GCBITS) | 1679 #define VALBITS (BITS_PER_EMACS_INT - GCBITS) |
1680 /* This is badly named; it's not the maximum value that an EMACS_INT can | |
1681 have, it's the maximum value that a Lisp-visible fixnum can have (half | |
1682 the maximum value an EMACS_INT can have) and as such would be better | |
1683 called MOST_POSITIVE_FIXNUM. Similarly for MOST_NEGATIVE_FIXNUM. */ | |
1684 #define MOST_POSITIVE_FIXNUM ((EMACS_INT) ((1UL << (FIXNUM_VALBITS - 1)) -1UL)) | 1680 #define MOST_POSITIVE_FIXNUM ((EMACS_INT) ((1UL << (FIXNUM_VALBITS - 1)) -1UL)) |
1685 #define MOST_NEGATIVE_FIXNUM (-(MOST_POSITIVE_FIXNUM) - 1) | 1681 #define MOST_NEGATIVE_FIXNUM (-(MOST_POSITIVE_FIXNUM) - 1) |
1686 /* WARNING: evaluates its arg twice. */ | 1682 /* WARNING: evaluates its arg twice. */ |
1687 #define NUMBER_FITS_IN_A_FIXNUM(num) \ | 1683 #define NUMBER_FITS_IN_A_FIXNUM(num) \ |
1688 ((num) <= MOST_POSITIVE_FIXNUM && (num) >= MOST_NEGATIVE_FIXNUM) | 1684 ((num) <= MOST_POSITIVE_FIXNUM && (num) >= MOST_NEGATIVE_FIXNUM) |