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boolbv_array.cpp
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1/*******************************************************************\
2
3Module:
4
5Author: Daniel Kroening, kroening@kroening.com
6
7\*******************************************************************/
8
9#include "boolbv.h"
10
11#include <util/invariant.h>
12
17{
18 const std::size_t width = boolbv_width(expr.type());
19 const exprt::operandst &operands = expr.operands();
20
21 if(operands.empty() && width == 0)
22 return bvt();
23
24 if(expr.type().id()==ID_array)
25 {
27 expr.has_operands(),
28 "the bit width being nonzero implies that the array has a nonzero size "
29 "in which case the array shall have operands");
30 const std::size_t op_width = width / operands.size();
31
32 bvt bv;
33 bv.reserve(width);
34
35 for(const auto &op : operands)
36 {
37 const bvt &tmp = convert_bv(op, op_width);
38
39 bv.insert(bv.end(), tmp.begin(), tmp.end());
40 }
41
42 return bv;
43 }
44
45 return conversion_failed(expr);
46}
ait supplies three of the four components needed: an abstract interpreter (in this case handling func...
Definition ai.h:562
virtual bvt convert_array(const exprt &expr)
Flatten array.
virtual const bvt & convert_bv(const exprt &expr, const std::optional< std::size_t > expected_width={})
Convert expression to vector of literalts, using an internal cache to speed up conversion if availabl...
Definition boolbv.cpp:39
bvt conversion_failed(const exprt &expr)
Print that the expression of x has failed conversion, then return a vector of x's width.
Definition boolbv.cpp:94
virtual std::size_t boolbv_width(const typet &type) const
Definition boolbv.h:103
Base class for all expressions.
Definition expr.h:56
std::vector< exprt > operandst
Definition expr.h:58
bool has_operands() const
Return true if there is at least one operand.
Definition expr.h:91
typet & type()
Return the type of the expression.
Definition expr.h:84
operandst & operands()
Definition expr.h:94
const irep_idt & id() const
Definition irep.h:388
std::vector< literalt > bvt
Definition literal.h:201
#define DATA_INVARIANT(CONDITION, REASON)
This condition should be used to document that assumptions that are made on goto_functions,...
Definition invariant.h:534