cprover
boolbv_complex.cpp
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1 /*******************************************************************\
2 
3 Module:
4 
5 Author: Daniel Kroening, kroening@kroening.com
6 
7 \*******************************************************************/
8 
9 #include "boolbv.h"
10 
11 #include <util/invariant.h>
12 
14 {
15  std::size_t width=boolbv_width(expr.type());
16 
17  if(width==0)
18  return conversion_failed(expr);
19 
21  expr.type().id() == ID_complex,
22  "complex expression shall have complex type");
23 
24  bvt bv;
25  bv.reserve(width);
26 
27  const exprt::operandst &operands = expr.operands();
28  std::size_t op_width = width / operands.size();
29 
30  forall_expr(it, operands)
31  {
32  const bvt &tmp = convert_bv(*it, op_width);
33 
34  forall_literals(it2, tmp)
35  bv.push_back(*it2);
36  }
37 
38  return bv;
39 }
40 
42 {
43  std::size_t width=boolbv_width(expr.type());
44 
45  if(width==0)
46  return conversion_failed(expr);
47 
48  bvt bv = convert_bv(expr.op(), width * 2);
49 
50  bv.resize(width); // chop
51 
52  return bv;
53 }
54 
56 {
57  std::size_t width=boolbv_width(expr.type());
58 
59  if(width==0)
60  return conversion_failed(expr);
61 
62  bvt bv = convert_bv(expr.op(), width * 2);
63 
64  bv.erase(bv.begin(), bv.begin()+width);
65 
66  return bv;
67 }
const exprt & op() const
Definition: std_expr.h:371
boolbv_widtht boolbv_width
Definition: boolbv.h:92
#define forall_expr(it, expr)
Definition: expr.h:31
typet & type()
Return the type of the expression.
Definition: expr.h:68
virtual const bvt & convert_bv(const exprt &expr, const optionalt< std::size_t > expected_width=nullopt)
Definition: boolbv.cpp:112
#define forall_literals(it, bv)
Definition: literal.h:202
Imaginary part of the expression describing a complex number.
Definition: std_expr.h:2087
const irep_idt & id() const
Definition: irep.h:259
Real part of the expression describing a complex number.
Definition: std_expr.h:2040
virtual bvt convert_complex_real(const complex_real_exprt &expr)
virtual bvt convert_complex(const complex_exprt &expr)
void conversion_failed(const exprt &expr, bvt &bv)
Definition: boolbv.h:110
std::vector< exprt > operandst
Definition: expr.h:57
virtual bvt convert_complex_imag(const complex_imag_exprt &expr)
#define DATA_INVARIANT(CONDITION, REASON)
This condition should be used to document that assumptions that are made on goto_functions,...
Definition: invariant.h:485
operandst & operands()
Definition: expr.h:78
std::vector< literalt > bvt
Definition: literal.h:200
Complex constructor from a pair of numbers.
Definition: std_expr.h:1962