aboutsummaryrefslogtreecommitdiffstats
path: root/src/lisp.h
diff options
context:
space:
mode:
authorPaul Eggert2011-06-02 01:25:28 -0700
committerPaul Eggert2011-06-02 01:25:28 -0700
commit275a5dd65098a2d6fcc14c21f805fc8d5e4479ee (patch)
treea03e79b0a7c066940ed02cd11927c7fd4080f092 /src/lisp.h
parent97f4ea979720e535ade3fe0055fb710e18fb7b5d (diff)
parentf797625a8ca7bc973b6943c6fce97f1e479a283d (diff)
downloademacs-275a5dd65098a2d6fcc14c21f805fc8d5e4479ee.tar.gz
emacs-275a5dd65098a2d6fcc14c21f805fc8d5e4479ee.zip
Merge from trunk.
Diffstat (limited to 'src/lisp.h')
-rw-r--r--src/lisp.h47
1 files changed, 23 insertions, 24 deletions
diff --git a/src/lisp.h b/src/lisp.h
index 8df4b67bb45..a9e7354f9fc 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -525,23 +525,21 @@ extern Lisp_Object make_number (EMACS_INT);
525 525
526#define EQ(x, y) (XHASH (x) == XHASH (y)) 526#define EQ(x, y) (XHASH (x) == XHASH (y))
527 527
528/* Largest and smallest representable fixnum values. These are the C 528/* Number of bits in a fixnum, including the sign bit. */
529 values. */
530
531#ifdef USE_2_TAGS_FOR_INTS 529#ifdef USE_2_TAGS_FOR_INTS
532# define MOST_NEGATIVE_FIXNUM - ((EMACS_INT) 1 << VALBITS) 530# define FIXNUM_BITS (VALBITS + 1)
533# define MOST_POSITIVE_FIXNUM (((EMACS_INT) 1 << VALBITS) - 1)
534/* Mask indicating the significant bits of a Lisp_Int.
535 I.e. (x & INTMASK) == XUINT (make_number (x)). */
536# define INTMASK ((((EMACS_INT) 1) << (VALBITS + 1)) - 1)
537#else 531#else
538# define MOST_NEGATIVE_FIXNUM - ((EMACS_INT) 1 << (VALBITS - 1)) 532# define FIXNUM_BITS VALBITS
539# define MOST_POSITIVE_FIXNUM (((EMACS_INT) 1 << (VALBITS - 1)) - 1)
540/* Mask indicating the significant bits of a Lisp_Int.
541 I.e. (x & INTMASK) == XUINT (make_number (x)). */
542# define INTMASK ((((EMACS_INT) 1) << VALBITS) - 1)
543#endif 533#endif
544 534
535/* Mask indicating the significant bits of a fixnum. */
536#define INTMASK (((EMACS_INT) 1 << FIXNUM_BITS) - 1)
537
538/* Largest and smallest representable fixnum values. These are the C
539 values. */
540#define MOST_POSITIVE_FIXNUM (INTMASK / 2)
541#define MOST_NEGATIVE_FIXNUM (-1 - MOST_POSITIVE_FIXNUM)
542
545/* Value is non-zero if I doesn't fit into a Lisp fixnum. It is 543/* Value is non-zero if I doesn't fit into a Lisp fixnum. It is
546 written this way so that it also works if I is of unsigned 544 written this way so that it also works if I is of unsigned
547 type or if I is a NaN. */ 545 type or if I is a NaN. */
@@ -1179,7 +1177,7 @@ struct Lisp_Hash_Table
1179 a special way (e.g. because of weakness). */ 1177 a special way (e.g. because of weakness). */
1180 1178
1181 /* Number of key/value entries in the table. */ 1179 /* Number of key/value entries in the table. */
1182 unsigned int count; 1180 EMACS_INT count;
1183 1181
1184 /* Vector of keys and values. The key of item I is found at index 1182 /* Vector of keys and values. The key of item I is found at index
1185 2 * I, the value is found at index 2 * I + 1. 1183 2 * I, the value is found at index 2 * I + 1.
@@ -1191,11 +1189,12 @@ struct Lisp_Hash_Table
1191 struct Lisp_Hash_Table *next_weak; 1189 struct Lisp_Hash_Table *next_weak;
1192 1190
1193 /* C function to compare two keys. */ 1191 /* C function to compare two keys. */
1194 int (* cmpfn) (struct Lisp_Hash_Table *, Lisp_Object, 1192 int (*cmpfn) (struct Lisp_Hash_Table *,
1195 unsigned, Lisp_Object, unsigned); 1193 Lisp_Object, EMACS_UINT,
1194 Lisp_Object, EMACS_UINT);
1196 1195
1197 /* C function to compute hash code. */ 1196 /* C function to compute hash code. */
1198 unsigned (* hashfn) (struct Lisp_Hash_Table *, Lisp_Object); 1197 EMACS_UINT (*hashfn) (struct Lisp_Hash_Table *, Lisp_Object);
1199}; 1198};
1200 1199
1201 1200
@@ -2093,7 +2092,7 @@ extern Lisp_Object Vascii_canon_table;
2093 2092
2094/* Number of bytes of structure consed since last GC. */ 2093/* Number of bytes of structure consed since last GC. */
2095 2094
2096extern int consing_since_gc; 2095extern EMACS_INT consing_since_gc;
2097 2096
2098extern EMACS_INT gc_relative_threshold; 2097extern EMACS_INT gc_relative_threshold;
2099 2098
@@ -2468,19 +2467,19 @@ extern void syms_of_syntax (void);
2468 2467
2469/* Defined in fns.c */ 2468/* Defined in fns.c */
2470extern Lisp_Object QCrehash_size, QCrehash_threshold; 2469extern Lisp_Object QCrehash_size, QCrehash_threshold;
2471extern int next_almost_prime (int); 2470extern EMACS_INT next_almost_prime (EMACS_INT);
2472extern Lisp_Object larger_vector (Lisp_Object, int, Lisp_Object); 2471extern Lisp_Object larger_vector (Lisp_Object, EMACS_INT, Lisp_Object);
2473extern void sweep_weak_hash_tables (void); 2472extern void sweep_weak_hash_tables (void);
2474extern Lisp_Object Qcursor_in_echo_area; 2473extern Lisp_Object Qcursor_in_echo_area;
2475extern Lisp_Object Qstring_lessp; 2474extern Lisp_Object Qstring_lessp;
2476extern Lisp_Object QCsize, QCtest, QCweakness, Qequal, Qeq, Qeql; 2475extern Lisp_Object QCsize, QCtest, QCweakness, Qequal, Qeq, Qeql;
2477unsigned sxhash (Lisp_Object, int); 2476EMACS_UINT sxhash (Lisp_Object, int);
2478Lisp_Object make_hash_table (Lisp_Object, Lisp_Object, Lisp_Object, 2477Lisp_Object make_hash_table (Lisp_Object, Lisp_Object, Lisp_Object,
2479 Lisp_Object, Lisp_Object, Lisp_Object, 2478 Lisp_Object, Lisp_Object, Lisp_Object,
2480 Lisp_Object); 2479 Lisp_Object);
2481int hash_lookup (struct Lisp_Hash_Table *, Lisp_Object, unsigned *); 2480EMACS_INT hash_lookup (struct Lisp_Hash_Table *, Lisp_Object, EMACS_UINT *);
2482int hash_put (struct Lisp_Hash_Table *, Lisp_Object, Lisp_Object, 2481EMACS_INT hash_put (struct Lisp_Hash_Table *, Lisp_Object, Lisp_Object,
2483 unsigned); 2482 EMACS_UINT);
2484void init_weak_hash_tables (void); 2483void init_weak_hash_tables (void);
2485extern void init_fns (void); 2484extern void init_fns (void);
2486EXFUN (Fmake_hash_table, MANY); 2485EXFUN (Fmake_hash_table, MANY);