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
137
138
139
140
141
|
/*-----------------------------------------------------------------------
File : che_lifo.c
Author: Stephan Schulz
Contents
LIFO-Clause evaluation
Copyright 1998, 1999 by the author.
This code is released under the GNU General Public Licence and
the GNU Lesser General Public License.
See the file COPYING in the main E directory for details..
Run "eprover -h" for contact information.
Changes
<1>Mon Jun 22 15:28:23 MET DST 1998
New
-----------------------------------------------------------------------*/
#include "che_lifo.h"
/*---------------------------------------------------------------------*/
/* Global Variables */
/*---------------------------------------------------------------------*/
/*---------------------------------------------------------------------*/
/* Forward Declarations */
/*---------------------------------------------------------------------*/
/*---------------------------------------------------------------------*/
/* Internal Functions */
/*---------------------------------------------------------------------*/
/*---------------------------------------------------------------------*/
/* Exported Functions */
/*---------------------------------------------------------------------*/
/*-----------------------------------------------------------------------
//
// Function: LIFOEvalInit()
//
// Return an initialized WFCB for FIFO evaluation.
//
// Global Variables:
//
// Side Effects :
//
/----------------------------------------------------------------------*/
WFCB_p LIFOEvalInit(ClausePrioFun prio_fun)
{
double *data;
data = SizeMalloc(sizeof(double));
*data = 0.0;
return WFCBAlloc(LIFOEvalCompute, prio_fun, LIFOEvalExit, data);
}
/*-----------------------------------------------------------------------
//
// Function: LIFOEvalParse()
//
// Parse a lifo-declaration.
//
// Global Variables: -
//
// Side Effects : -
//
/----------------------------------------------------------------------*/
WFCB_p LIFOEvalParse(Scanner_p in, OCB_p ocb, ProofState_p state)
{
ClausePrioFun prio_fun;
AcceptInpTok(in, OpenBracket);
prio_fun = ParsePrioFun(in);
AcceptInpTok(in, CloseBracket);
return LIFOEvalInit(prio_fun);
}
/*-----------------------------------------------------------------------
//
// Function: LIFOEvalCompute()
//
// Compute an evaluation for a clause.
//
// Global Variables: -
//
// Side Effects : Memory operations
//
/----------------------------------------------------------------------*/
double LIFOEvalCompute(void* data, Clause_p clause)
{
double *local = data;
*local = (*local)-1.0;
return *local;
}
/*-----------------------------------------------------------------------
//
// Function: LIFOEvalExit()
//
// Free the data entry in a LIFO WFCB.
//
// Global Variables: -
//
// Side Effects : Memory operations
//
/----------------------------------------------------------------------*/
void LIFOEvalExit(void* data)
{
SizeFree(data, sizeof(double));
}
/*---------------------------------------------------------------------*/
/* End of File */
/*---------------------------------------------------------------------*/
|
