blob: b475e7d5db78e844cb9d1e8fcadf9dbedc001af2 (
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
|
#include <stdlib.h>
#include "header.h"
struct SN_env *
SN_create_env(int S_size, int I_size, int B_size)
{
struct SN_env *z = (struct SN_env *) calloc(1, sizeof(struct SN_env));
struct SN_env *z2 = z;
if (!z)
return z;
z->p = create_s();
if (!z->p)
z = NULL;
if (z && S_size)
{
if ((z->S = (symbol * *) calloc(S_size, sizeof(symbol *))))
{
int i;
for (i = 0; i < S_size; i++)
{
if (!(z->S[i] = create_s()))
{
z = NULL;
break;
}
}
z2->S_size = i;
}
else
z = NULL;
}
if (z && I_size)
{
z->I = (int *) calloc(I_size, sizeof(int));
if (z->I)
z->I_size = I_size;
else
z = NULL;
}
if (z && B_size)
{
z->B = (symbol *) calloc(B_size, sizeof(symbol));
if (z->B)
z->B_size = B_size;
else
z = NULL;
}
if (!z)
SN_close_env(z2);
return z;
}
void
SN_close_env(struct SN_env * z)
{
if (z->S && z->S_size)
{
{
int i;
for (i = 0; i < z->S_size; i++)
lose_s(z->S[i]);
}
free(z->S);
}
if (z->I_size)
free(z->I);
if (z->B_size)
free(z->B);
if (z->p)
lose_s(z->p);
free(z);
}
void
SN_set_current(struct SN_env * z, int size, const symbol * s)
{
replace_s(z, 0, z->l, size, s);
z->c = 0;
}
|
