blob: 822970f2ba3e2a46e0df00943d89c83e0157e35a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
#include "rtt.h"
int n_tmp_str = 0;
int n_tmp_cset = 0;
struct sym_entry *params = NULL;
/*
* clr_def - clear any information related to definitions.
*/
void clr_def()
{
struct sym_entry *sym;
n_tmp_str = 0;
n_tmp_cset = 0;
while (params != NULL) {
sym = params;
params = params->u.param_info.next;
free_sym(sym);
}
free_tend();
if (v_len != NULL)
free_sym(v_len);
v_len = NULL;
il_indx = 0;
lbl_num = 0;
abs_ret = SomeType;
}
/*
* ttol - convert a token representing an integer constant into a long
* integer value.
*/
long ttol(t)
struct token *t;
{
register long i;
register char *s;
int base;
s = t->image;
i = 0;
base = 10;
if (*s == '0') {
base = 8;
++s;
if (*s == 'x') {
base = 16;
++s;
}
}
while (*s != '\0') {
i *= base;
if (*s >= '0' && *s <= '9')
i += *s++ - '0';
else if (*s >= 'a' && *s <= 'f')
i += *s++ - 'a' + 10;
else if (*s >= 'A' && *s <= 'F')
i += *s++ - 'A' + 10;
}
return i;
}
struct token *chk_exct(tok)
struct token *tok;
{
struct sym_entry *sym;
sym = sym_lkup(tok->image);
if (sym->u.typ_indx != int_typ)
errt2(tok, "exact conversions do not apply to ", tok->image);
return tok;
}
/*
* icn_typ - convert a type node into a type code for the internal
* representation of the data base.
*/
int icn_typ(typ)
struct node *typ;
{
switch (typ->nd_id) {
case PrimryNd:
switch (typ->tok->tok_id) {
case Any_value:
return TypAny;
case Empty_type:
return TypEmpty;
case Variable:
return TypVar;
case C_Integer:
return TypCInt;
case C_Double:
return TypCDbl;
case C_String:
return TypCStr;
case Tmp_string:
return TypTStr;
case Tmp_cset:
return TypTCset;
}
case SymNd:
return typ->u[0].sym->u.typ_indx;
default: /* must be exact conversion */
if (typ->tok->tok_id == C_Integer)
return TypECInt;
else /* integer */
return TypEInt;
}
}
|
