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comparison src/lisp-union.h @ 442:abe6d1db359e r21-2-36

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Import from CVS: tag r21-2-36
author cvs
date Mon, 13 Aug 2007 11:35:02 +0200
parents 3ecd8885ac67
children af57a77cbc92
comparison
equal deleted inserted replaced
441:72a7cfa4a488 442:abe6d1db359e
28 28
29 typedef 29 typedef
30 union Lisp_Object 30 union Lisp_Object
31 { 31 {
32 /* if non-valbits are at lower addresses */ 32 /* if non-valbits are at lower addresses */
33 #if defined(WORDS_BIGENDIAN) 33 #ifdef WORDS_BIGENDIAN
34 struct 34 struct
35 { 35 {
36 EMACS_UINT val : VALBITS; 36 EMACS_UINT val : VALBITS;
37 enum_field (Lisp_Type) type : GCTYPEBITS; 37 enum_field (Lisp_Type) type : GCTYPEBITS;
38 } gu; 38 } gu;
74 74
75 /* This was formerly declared 'void *v' etc. but that causes 75 /* This was formerly declared 'void *v' etc. but that causes
76 GCC to accept any (yes, any) pointer as the argument of 76 GCC to accept any (yes, any) pointer as the argument of
77 a function declared to accept a Lisp_Object. */ 77 a function declared to accept a Lisp_Object. */
78 struct nosuchstruct *v; 78 struct nosuchstruct *v;
79 CONST struct nosuchstruct *cv; 79 const struct nosuchstruct *cv;
80 } 80 }
81 Lisp_Object; 81 Lisp_Object;
82 82
83 #define XCHARVAL(x) ((x).gu.val) 83 #define XCHARVAL(x) ((x).gu.val)
84 84
92 Emchar xset_value = (value); \ 92 Emchar xset_value = (value); \
93 Lisp_Object *xset_var = &(var); \ 93 Lisp_Object *xset_var = &(var); \
94 xset_var->gu.type = Lisp_Type_Char; \ 94 xset_var->gu.type = Lisp_Type_Char; \
95 xset_var->gu.val = xset_value; \ 95 xset_var->gu.val = xset_value; \
96 } while (0) 96 } while (0)
97 # define XSETOBJ(var, vartype, value) do { \ 97 # define XSETOBJ(var, value) do { \
98 EMACS_UINT xset_value = (EMACS_UINT) (value); \ 98 EMACS_UINT xset_value = (EMACS_UINT) (value); \
99 (var).ui = xset_value; \ 99 (var).ui = xset_value; \
100 } while (0) 100 } while (0)
101 # define XPNTRVAL(x) ((x).ui) 101 # define XPNTRVAL(x) ((x).ui)
102 102
103 INLINE Lisp_Object make_int (EMACS_INT val); 103 INLINE_HEADER Lisp_Object make_int (EMACS_INT val);
104 INLINE Lisp_Object 104 INLINE_HEADER Lisp_Object
105 make_int (EMACS_INT val) 105 make_int (EMACS_INT val)
106 { 106 {
107 Lisp_Object obj; 107 Lisp_Object obj;
108 XSETINT(obj, val); 108 XSETINT (obj, val);
109 return obj; 109 return obj;
110 } 110 }
111 111
112 INLINE Lisp_Object make_char (Emchar val); 112 INLINE_HEADER Lisp_Object make_char (Emchar val);
113 INLINE Lisp_Object 113 INLINE_HEADER Lisp_Object
114 make_char (Emchar val) 114 make_char (Emchar val)
115 { 115 {
116 Lisp_Object obj; 116 Lisp_Object obj;
117 XSETCHAR(obj, val); 117 XSETCHAR (obj, val);
118 return obj;
119 }
120
121 INLINE_HEADER Lisp_Object wrap_object (void *ptr);
122 INLINE_HEADER Lisp_Object
123 wrap_object (void *ptr)
124 {
125 Lisp_Object obj;
126 XSETOBJ (obj, ptr);
118 return obj; 127 return obj;
119 } 128 }
120 129
121 extern Lisp_Object Qnull_pointer, Qzero; 130 extern Lisp_Object Qnull_pointer, Qzero;
122 131
134 /* Convert between a (void *) and a Lisp_Object, as when the 143 /* Convert between a (void *) and a Lisp_Object, as when the
135 Lisp_Object is passed to a toolkit callback function */ 144 Lisp_Object is passed to a toolkit callback function */
136 #define VOID_TO_LISP(larg,varg) \ 145 #define VOID_TO_LISP(larg,varg) \
137 ((void) ((larg).v = (struct nosuchstruct *) (varg))) 146 ((void) ((larg).v = (struct nosuchstruct *) (varg)))
138 #define CVOID_TO_LISP(larg,varg) \ 147 #define CVOID_TO_LISP(larg,varg) \
139 ((void) ((larg).cv = (CONST struct nosuchstruct *) (varg))) 148 ((void) ((larg).cv = (const struct nosuchstruct *) (varg)))
140 #define LISP_TO_VOID(larg) ((void *) ((larg).v)) 149 #define LISP_TO_VOID(larg) ((void *) ((larg).v))
141 #define LISP_TO_CVOID(larg) ((CONST void *) ((larg).cv)) 150 #define LISP_TO_CVOID(larg) ((const void *) ((larg).cv))
142 151
143 /* Convert a Lisp_Object into something that can't be used as an 152 /* Convert a Lisp_Object into something that can't be used as an
144 lvalue. Useful for type-checking. */ 153 lvalue. Useful for type-checking. */
145 #if (__GNUC__ > 1) 154 #if (__GNUC__ > 1)
146 #define NON_LVALUE(larg) ({ (larg); }) 155 #define NON_LVALUE(larg) ({ (larg); })