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
  
115
  
116
  
117
  
118
  
119
  
120
  
121
  
122
  
123
  
124
  
125
  
126
  
127
  
128
  
129
  
130
  
131
  
132
  
133
  
134
  
135
  
136
  
/* 
|| This file is part of Pike. For copyright information see COPYRIGHT. 
|| Pike is distributed under GPL, LGPL and MPL. See the file COPYING 
|| for more information. 
*/ 
 
#include "global.h" 
 
#include "interpret.h" 
#include "program.h" 
#include "object.h" 
#include "svalue.h" 
#include "pike_error.h" 
 
#include "bignum.h" 
 
#define sp Pike_sp 
 
PMOD_EXPORT struct svalue auto_bignum_program = SVALUE_INIT_FREE; 
 
PMOD_EXPORT struct program *get_auto_bignum_program(void) 
{ 
  return program_from_svalue(&auto_bignum_program); 
} 
 
PMOD_EXPORT struct program *get_auto_bignum_program_or_zero(void) 
{ 
  return program_from_svalue(&auto_bignum_program); 
} 
 
PMOD_EXPORT void convert_stack_top_to_bignum(void) 
{ 
  apply_svalue(&auto_bignum_program, 1); 
} 
 
PMOD_EXPORT void convert_stack_top_with_base_to_bignum(void) 
{ 
  apply_svalue(&auto_bignum_program, 2); 
} 
 
int is_bignum_object(struct object *o) 
{ 
  return o->prog == program_from_svalue(&auto_bignum_program); 
} 
 
PMOD_EXPORT int is_bignum_object_in_svalue(struct svalue *sv) 
{ 
  /* FIXME: object subtype? */ 
  return TYPEOF(*sv) == T_OBJECT && is_bignum_object(sv->u.object); 
} 
 
PMOD_EXPORT struct object *make_bignum_object(void) 
{ 
  convert_stack_top_to_bignum(); 
  dmalloc_touch_svalue(sp-1); 
  return (--sp)->u.object; 
} 
 
PMOD_EXPORT struct object *bignum_from_svalue(struct svalue *s) 
{ 
  push_svalue(s); 
  convert_stack_top_to_bignum(); 
  dmalloc_touch_svalue(sp-1); 
  return (--sp)->u.object; 
} 
 
PMOD_EXPORT struct pike_string *string_from_bignum(struct object *o, int base) 
{ 
  push_int(base); 
  safe_apply(o, "digits", 1); 
   
  if(TYPEOF(sp[-1]) != T_STRING) 
    Pike_error("Gmp.mpz string conversion failed.\n"); 
   
  dmalloc_touch_svalue(sp-1); 
  return (--sp)->u.string; 
} 
 
PMOD_EXPORT void convert_svalue_to_bignum(struct svalue *s) 
{ 
  push_svalue(s); 
  convert_stack_top_to_bignum(); 
  free_svalue(s); 
  *s=sp[-1]; 
  sp--; 
  dmalloc_touch_svalue(sp); 
} 
 
#ifdef INT64 
static void bootstrap_push_int64 (INT64 i) 
{ 
  if(i == DO_NOT_WARN((INT_TYPE)i)) 
  { 
    push_int(DO_NOT_WARN((INT_TYPE)i)); 
  } 
  else 
    Pike_fatal ("Failed to convert large integer (Gmp.bignum not loaded).\n"); 
} 
 
PMOD_EXPORT void (*push_int64) (INT64) = bootstrap_push_int64; 
PMOD_EXPORT int (*int64_from_bignum) (INT64 *, struct object *) = NULL; 
PMOD_EXPORT void (*reduce_stack_top_bignum) (void) = NULL; 
#endif 
 
PMOD_EXPORT void (*push_ulongest) (unsigned LONGEST) = NULL; 
PMOD_EXPORT int (*ulongest_from_bignum) (unsigned LONGEST *, 
                                         struct object *) = NULL; 
 
PMOD_EXPORT int (*mpz_from_svalue)(MP_INT *, struct svalue *) = NULL; 
PMOD_EXPORT void (*push_bignum)(MP_INT *) = NULL; 
 
PMOD_EXPORT void hook_in_gmp_funcs ( 
#ifdef INT64 
  void (*push_int64_val)(INT64), 
  int (*int64_from_bignum_val) (INT64 *, struct object *), 
  void (*reduce_stack_top_bignum_val) (void), 
#endif 
  void (*push_ulongest_val) (unsigned LONGEST), 
  int (*ulongest_from_bignum_val) (unsigned LONGEST *, struct object *), 
  int (*mpz_from_svalue_val)(MP_INT *, struct svalue *), 
  void (*push_bignum_val)(MP_INT *)) 
{ 
  /* Assigning the pointers above directly from the Gmp module doesn't 
   * work in some cases, e.g. NT. */ 
#ifdef INT64 
  push_int64 = push_int64_val ? push_int64_val : bootstrap_push_int64; 
  int64_from_bignum = int64_from_bignum_val; 
  reduce_stack_top_bignum = reduce_stack_top_bignum_val; 
#endif 
  push_ulongest = push_ulongest_val; 
  ulongest_from_bignum = ulongest_from_bignum_val; 
  mpz_from_svalue = mpz_from_svalue_val; 
  push_bignum = push_bignum_val; 
}