| 2 |
7u83 |
1 |
/*
|
|
|
2 |
Crown Copyright (c) 1997
|
|
|
3 |
|
|
|
4 |
This TenDRA(r) Computer Program is subject to Copyright
|
|
|
5 |
owned by the United Kingdom Secretary of State for Defence
|
|
|
6 |
acting through the Defence Evaluation and Research Agency
|
|
|
7 |
(DERA). It is made available to Recipients with a
|
|
|
8 |
royalty-free licence for its use, reproduction, transfer
|
|
|
9 |
to other parties and amendment for any purpose not excluding
|
|
|
10 |
product development provided that any such use et cetera
|
|
|
11 |
shall be deemed to be acceptance of the following conditions:-
|
|
|
12 |
|
|
|
13 |
(1) Its Recipients shall ensure that this Notice is
|
|
|
14 |
reproduced upon any copies or amended versions of it;
|
|
|
15 |
|
|
|
16 |
(2) Any amended version of it shall be clearly marked to
|
|
|
17 |
show both the nature of and the organisation responsible
|
|
|
18 |
for the relevant amendment or amendments;
|
|
|
19 |
|
|
|
20 |
(3) Its onward transfer from a recipient to another
|
|
|
21 |
party shall be deemed to be that party's acceptance of
|
|
|
22 |
these conditions;
|
|
|
23 |
|
|
|
24 |
(4) DERA gives no warranty or assurance as to its
|
|
|
25 |
quality or suitability for any purpose and DERA accepts
|
|
|
26 |
no liability whatsoever in relation to any use to which
|
|
|
27 |
it may be put.
|
|
|
28 |
*/
|
|
|
29 |
|
|
|
30 |
|
|
|
31 |
#ifndef CONVERT_INCLUDED
|
|
|
32 |
#define CONVERT_INCLUDED
|
|
|
33 |
|
|
|
34 |
|
|
|
35 |
/*
|
|
|
36 |
TYPE REPRESENTING AN IMPLICIT CONVERSION SEQUENCE
|
|
|
37 |
|
|
|
38 |
This type is used to represent an implicit conversion sequence. The
|
|
|
39 |
main components are the two types being converted from and to, and
|
|
|
40 |
the overall rank of the conversion (see below). For user-defined
|
|
|
41 |
conversions, the conversion function used and the rank of the following
|
|
|
42 |
standard conversion are recorded. For base class and qualification
|
|
|
43 |
conversions the associated data is also recorded.
|
|
|
44 |
*/
|
|
|
45 |
|
|
|
46 |
typedef struct {
|
|
|
47 |
TYPE from, to ;
|
|
|
48 |
unsigned rank ;
|
|
|
49 |
unsigned std ;
|
|
|
50 |
IDENTIFIER usr ;
|
|
|
51 |
GRAPH base ;
|
|
|
52 |
CV_SPEC qual ;
|
|
|
53 |
} CONVERSION ;
|
|
|
54 |
|
|
|
55 |
|
|
|
56 |
/*
|
|
|
57 |
TYPE CONVERSION DECLARATIONS
|
|
|
58 |
|
|
|
59 |
The routines in this module are concerned with the standard C and C++
|
|
|
60 |
type conversions.
|
|
|
61 |
*/
|
|
|
62 |
|
|
|
63 |
extern TYPE arith_type PROTO_S ( ( TYPE, TYPE, EXP, EXP ) ) ;
|
|
|
64 |
extern TYPE promote_type PROTO_S ( ( TYPE ) ) ;
|
|
|
65 |
extern TYPE unpromote_type PROTO_S ( ( TYPE ) ) ;
|
|
|
66 |
extern TYPE arg_promote_type PROTO_S ( ( TYPE, ERROR * ) ) ;
|
|
|
67 |
extern TYPE ptr_common_type PROTO_S ( ( TYPE, TYPE, int, int * ) ) ;
|
|
|
68 |
extern TYPE ptr_mem_common_type PROTO_S ( ( TYPE, TYPE, int * ) ) ;
|
|
|
69 |
extern TYPE common_type PROTO_S ( ( TYPE, TYPE, int * ) ) ;
|
|
|
70 |
extern unsigned check_qualifier PROTO_S ( ( TYPE, TYPE, int ) ) ;
|
|
|
71 |
extern int is_arg_promote PROTO_S ( ( TYPE ) ) ;
|
|
|
72 |
extern int qualifier_depth ;
|
|
|
73 |
|
|
|
74 |
extern EXP convert_arith PROTO_S ( ( TYPE, EXP, int, int ) ) ;
|
|
|
75 |
extern EXP convert_bitfield PROTO_S ( ( EXP ) ) ;
|
|
|
76 |
extern EXP convert_boolean PROTO_S ( ( EXP, unsigned, ERROR * ) ) ;
|
|
|
77 |
extern EXP convert_array PROTO_S ( ( EXP, int, ERROR * ) ) ;
|
|
|
78 |
extern EXP convert_lvalue PROTO_S ( ( EXP ) ) ;
|
|
|
79 |
extern EXP convert_none PROTO_S ( ( EXP ) ) ;
|
|
|
80 |
extern EXP convert_const PROTO_S ( ( EXP ) ) ;
|
|
|
81 |
extern EXP convert_promote PROTO_S ( ( TYPE, EXP ) ) ;
|
|
|
82 |
extern EXP convert_ptr_common PROTO_S ( ( TYPE, EXP, int, int ) ) ;
|
|
|
83 |
extern EXP convert_ptr_mem_common PROTO_S ( ( TYPE, EXP, int, int ) ) ;
|
|
|
84 |
extern EXP convert_reference PROTO_S ( ( EXP, int ) ) ;
|
|
|
85 |
extern TYPE convert_qual_type PROTO_S ( ( TYPE ) ) ;
|
|
|
86 |
|
|
|
87 |
extern unsigned convert_seq PROTO_S ( ( CONVERSION *, EXP, int, int ) ) ;
|
|
|
88 |
extern unsigned std_convert_seq PROTO_S ( ( CONVERSION *, EXP, int, int ) ) ;
|
|
|
89 |
extern int compare_seq PROTO_S ( ( CONVERSION *, CONVERSION * ) ) ;
|
|
|
90 |
extern int is_ambiguous_func PROTO_S ( ( IDENTIFIER ) ) ;
|
|
|
91 |
|
|
|
92 |
|
|
|
93 |
/*
|
|
|
94 |
QUALIFICATION CONVERSION RULES
|
|
|
95 |
|
|
|
96 |
These values comprise the bitpattern returned by check_qualifier. They
|
|
|
97 |
indicate which of the conditions required by the qualifaction conversions
|
|
|
98 |
are satisfied by a particular pair of types. They are also used to
|
|
|
99 |
indicate whether the types are equal or equal functions.
|
|
|
100 |
*/
|
|
|
101 |
|
|
|
102 |
#define QUAL_SIMILAR ( ( unsigned ) 0x01 )
|
|
|
103 |
#define QUAL_CONST ( ( unsigned ) 0x02 )
|
|
|
104 |
#define QUAL_VOLATILE ( ( unsigned ) 0x04 )
|
|
|
105 |
#define QUAL_ALL_CONST ( ( unsigned ) 0x08 )
|
|
|
106 |
#define QUAL_EXACT ( ( unsigned ) 0x10 )
|
|
|
107 |
#define QUAL_FUNC ( ( unsigned ) 0x20 )
|
|
|
108 |
#define QUAL_TEMPL ( ( unsigned ) 0x40 )
|
|
|
109 |
|
|
|
110 |
#define QUAL_CV ( ( unsigned ) 0x0e )
|
|
|
111 |
#define QUAL_OK ( ( unsigned ) 0x0f )
|
|
|
112 |
#define QUAL_EQUAL ( ( unsigned ) 0x1f )
|
|
|
113 |
#define QUAL_EQ_FUNC ( ( unsigned ) 0x3f )
|
|
|
114 |
|
|
|
115 |
|
|
|
116 |
/*
|
|
|
117 |
CONVERSION SEQUENCE RANKS
|
|
|
118 |
|
|
|
119 |
These values are used to indicate the various ranks of implicit
|
|
|
120 |
conversion sequences used within overload resolution. The upper byte
|
|
|
121 |
gives the conversion rank (the higher the value, the better the
|
|
|
122 |
conversion), while the lower byte gives further information on the
|
|
|
123 |
dominant conversion.
|
|
|
124 |
*/
|
|
|
125 |
|
|
|
126 |
#define CONV_EXACT ( ( unsigned ) 0x60 )
|
|
|
127 |
|
|
|
128 |
#define CONV_QUAL ( ( unsigned ) 0x50 )
|
|
|
129 |
#define CONV_STRING ( ( unsigned ) 0x51 )
|
|
|
130 |
|
|
|
131 |
#define CONV_INT_PROM ( ( unsigned ) 0x40 )
|
|
|
132 |
#define CONV_FLT_PROM ( ( unsigned ) 0x41 )
|
|
|
133 |
#define CONV_BITFIELD ( ( unsigned ) 0x42 )
|
|
|
134 |
|
|
|
135 |
#define CONV_INT_INT ( ( unsigned ) 0x30 )
|
|
|
136 |
#define CONV_FLT_FLT ( ( unsigned ) 0x31 )
|
|
|
137 |
#define CONV_INT_FLT ( ( unsigned ) 0x32 )
|
|
|
138 |
#define CONV_FLT_INT ( ( unsigned ) 0x33 )
|
|
|
139 |
#define CONV_PTR_BASE ( ( unsigned ) 0x34 )
|
|
|
140 |
#define CONV_PTR_VOID ( ( unsigned ) 0x35 )
|
|
|
141 |
#define CONV_PTR_BOTTOM ( ( unsigned ) 0x36 )
|
|
|
142 |
#define CONV_PTR_NULL ( ( unsigned ) 0x37 )
|
|
|
143 |
#define CONV_PTR_MEM_BASE ( ( unsigned ) 0x38 )
|
|
|
144 |
#define CONV_PTR_MEM_NULL ( ( unsigned ) 0x39 )
|
|
|
145 |
#define CONV_BASE ( ( unsigned ) 0x3a )
|
|
|
146 |
#define CONV_BOOL ( ( unsigned ) 0x3b )
|
|
|
147 |
|
|
|
148 |
#define CONV_USER ( ( unsigned ) 0x20 )
|
|
|
149 |
#define CONV_USER_MULTI ( ( unsigned ) 0x21 )
|
|
|
150 |
|
|
|
151 |
#define CONV_ELLIPSIS ( ( unsigned ) 0x10 )
|
|
|
152 |
|
|
|
153 |
#define CONV_NONE ( ( unsigned ) 0x00 )
|
|
|
154 |
#define CONV_NULL ( ( unsigned ) 0x01 )
|
|
|
155 |
#define CONV_PTR_PTR ( ( unsigned ) 0x02 )
|
|
|
156 |
#define CONV_PTR_PTR_ALIGN ( ( unsigned ) 0x03 )
|
|
|
157 |
#define CONV_INT_PTR ( ( unsigned ) 0x04 )
|
|
|
158 |
#define CONV_PTR_INT ( ( unsigned ) 0x05 )
|
|
|
159 |
#define CONV_PTR_MEM_PTR_MEM ( ( unsigned ) 0x06 )
|
|
|
160 |
#define CONV_PTR_MEM_FUNC ( ( unsigned ) 0x07 )
|
|
|
161 |
#define CONV_FUNC ( ( unsigned ) 0x08 )
|
|
|
162 |
#define CONV_ENUM ( ( unsigned ) 0x09 )
|
|
|
163 |
|
|
|
164 |
#define CONV_REVERSE ( ( unsigned ) 0x80 )
|
|
|
165 |
|
|
|
166 |
#define CONV_RANK( A ) ( ( A ) & 0x70 )
|
|
|
167 |
|
|
|
168 |
|
|
|
169 |
/*
|
|
|
170 |
REFERENCE CONVERSION CONTEXTS
|
|
|
171 |
|
|
|
172 |
These values are used in convert_reference to indicate the various
|
|
|
173 |
contexts for reference conversion.
|
|
|
174 |
*/
|
|
|
175 |
|
|
|
176 |
#define REF_NORMAL 0
|
|
|
177 |
#define REF_FUNCTION 1
|
|
|
178 |
#define REF_ASSIGN 2
|
|
|
179 |
#define REF_ADDRESS 3
|
|
|
180 |
|
|
|
181 |
|
|
|
182 |
#endif
|