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format_expr.cpp
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1/*******************************************************************\
2
3Module: Expression Pretty Printing
4
5Author: Daniel Kroening, kroening@kroening.com
6
7\*******************************************************************/
8
11
12#include "format_expr.h"
13
14#include "arith_tools.h"
15#include "bitvector_expr.h"
16#include "byte_operators.h"
17#include "expr_util.h"
18#include "floatbv_expr.h"
19#include "format_type.h"
20#include "ieee_float.h"
21#include "mathematical_expr.h"
22#include "mp_arith.h"
23#include "pointer_expr.h"
24#include "string_utils.h"
25
26#include <map>
27#include <ostream>
28
29// expressions that are rendered with infix operators
31{
32 const char *rep;
33};
34
35const std::map<irep_idt, infix_opt> infix_map = {
36 {ID_plus, {"+"}},
37 {ID_minus, {"-"}},
38 {ID_mult, {"*"}},
39 {ID_div, {"/"}},
40 {ID_equal, {"="}},
41 {ID_notequal, {u8"\u2260"}}, // /=, U+2260
42 {ID_and, {u8"\u2227"}}, // wedge, U+2227
43 {ID_or, {u8"\u2228"}}, // vee, U+2228
44 {ID_xor, {u8"\u2295"}}, // + in circle, U+2295
45 {ID_implies, {u8"\u21d2"}}, // =>, U+21D2
46 {ID_le, {u8"\u2264"}}, // <=, U+2264
47 {ID_ge, {u8"\u2265"}}, // >=, U+2265
48 {ID_lt, {"<"}},
49 {ID_gt, {">"}},
50};
51
55static bool bracket_subexpression(const exprt &sub_expr, const exprt &expr)
56{
57 // no need for parentheses whenever the subexpression
58 // doesn't have operands
59 if(!sub_expr.has_operands())
60 return false;
61
62 // no need if subexpression isn't an infix operator
63 if(infix_map.find(sub_expr.id()) == infix_map.end())
64 return false;
65
66 // * and / bind stronger than + and -
67 if(
68 (sub_expr.id() == ID_mult || sub_expr.id() == ID_div) &&
69 (expr.id() == ID_plus || expr.id() == ID_minus))
70 return false;
71
72 // ==, !=, <, <=, >, >= bind stronger than && and ||
73 if(
74 (sub_expr.id() == ID_equal || sub_expr.id() == ID_notequal ||
75 sub_expr.id() == ID_lt || sub_expr.id() == ID_gt ||
76 sub_expr.id() == ID_le || sub_expr.id() == ID_ge) &&
77 (expr.id() == ID_and || expr.id() == ID_or))
78 return false;
79
80 // +, -, *, / bind stronger than ==, !=, <, <=, >, >=
81 if(
82 (sub_expr.id() == ID_plus || sub_expr.id() == ID_minus ||
83 sub_expr.id() == ID_mult || sub_expr.id() == ID_div) &&
84 (expr.id() == ID_equal || expr.id() == ID_notequal || expr.id() == ID_lt ||
85 expr.id() == ID_gt || expr.id() == ID_le || expr.id() == ID_ge))
86 {
87 return false;
88 }
89
90 return true;
91}
92
95static std::ostream &format_rec(std::ostream &os, const multi_ary_exprt &src)
96{
97 bool first = true;
98
99 std::string operator_str = id2string(src.id()); // default
100
101 if(src.id() == ID_equal && to_equal_expr(src).op0().is_boolean())
102 {
103 operator_str = u8"\u21d4"; // <=>, U+21D4
104 }
105 else
106 {
107 auto infix_map_it = infix_map.find(src.id());
108 if(infix_map_it != infix_map.end())
109 operator_str = infix_map_it->second.rep;
110 }
111
112 for(const auto &op : src.operands())
113 {
114 if(first)
115 first = false;
116 else
117 os << ' ' << operator_str << ' ';
118
119 const bool need_parentheses = bracket_subexpression(op, src);
120
121 if(need_parentheses)
122 os << '(';
123
124 os << format(op);
125
126 if(need_parentheses)
127 os << ')';
128 }
129
130 return os;
131}
132
135static std::ostream &format_rec(std::ostream &os, const binary_exprt &src)
136{
137 return format_rec(os, to_multi_ary_expr(src));
138}
139
142static std::ostream &format_rec(std::ostream &os, const unary_exprt &src)
143{
144 if(src.id() == ID_not)
145 os << u8"\u00ac"; // neg, U+00AC
146 else if(src.id() == ID_unary_minus)
147 os << '-';
148 else if(src.id() == ID_count_leading_zeros)
149 os << "clz";
150 else if(src.id() == ID_count_trailing_zeros)
151 os << "ctz";
152 else if(src.id() == ID_find_first_set)
153 os << "ffs";
154 else
155 return os << src.pretty();
156
157 if(src.op().has_operands())
158 return os << '(' << format(src.op()) << ')';
159 else
160 return os << format(src.op());
161}
162
164static std::ostream &format_rec(std::ostream &os, const ternary_exprt &src)
165{
166 os << src.id() << '(' << format(src.op0()) << ", " << format(src.op1())
167 << ", " << format(src.op2()) << ')';
168 return os;
169}
170
172static std::ostream &format_rec(std::ostream &os, const constant_exprt &src)
173{
174 auto type = src.type().id();
175
176 if(type == ID_bool)
177 {
178 if(src.is_true())
179 return os << "true";
180 else if(src.is_false())
181 return os << "false";
182 else
183 return os << src.pretty();
184 }
185 else if(
186 type == ID_unsignedbv || type == ID_signedbv || type == ID_c_bool ||
187 type == ID_c_bit_field)
188 return os << *numeric_cast<mp_integer>(src);
189 else if(type == ID_integer || type == ID_natural || type == ID_range)
190 return os << src.get_value();
191 else if(type == ID_string)
192 return os << '"' << escape(id2string(src.get_value())) << '"';
193 else if(type == ID_floatbv)
194 return os << ieee_floatt(src);
195 else if(type == ID_pointer)
196 {
197 if(is_null_pointer(src))
198 return os << ID_NULL;
199 else if(
200 src.get_value() == "INVALID" || src.get_value().starts_with("INVALID-"))
201 {
202 return os << "INVALID-POINTER";
203 }
204 else
205 {
206 const auto &pointer_type = to_pointer_type(src.type());
207 const auto width = pointer_type.get_width();
208 auto int_value = bvrep2integer(src.get_value(), width, false);
209 return os << "pointer(0x" << integer2string(int_value, 16) << ", "
210 << format(pointer_type.base_type()) << ')';
211 }
212 }
213 else if(type == ID_c_enum_tag)
214 {
215 return os << string2integer(id2string(src.get_value()), 16);
216 }
217 else
218 return os << src.pretty();
219}
220
221std::ostream &fallback_format_rec(std::ostream &os, const exprt &expr)
222{
223 os << expr.id();
224
225 for(const auto &s : expr.get_named_sub())
226 if(s.first != ID_type && s.first != ID_C_source_location)
227 os << ' ' << s.first << "=\"" << s.second.id() << '"';
228
229 if(expr.has_operands())
230 {
231 os << '(';
232 bool first = true;
233
234 for(const auto &op : expr.operands())
235 {
236 if(first)
237 first = false;
238 else
239 os << ", ";
240
241 os << format(op);
242 }
243
244 os << ')';
245 }
246
247 return os;
248}
249
251{
252public:
254 {
255 setup();
256 }
257
259 std::function<std::ostream &(std::ostream &, const exprt &)>;
260 using expr_mapt = std::unordered_map<irep_idt, formattert>;
261
263
265 const formattert &find_formatter(const exprt &);
266
267private:
269 void setup();
270
272};
273
274// The below generates textual output in a generic syntax
275// that is inspired by C/C++/Java, and is meant for debugging
276// purposes.
278{
279 auto multi_ary_expr =
280 [](std::ostream &os, const exprt &expr) -> std::ostream & {
281 return format_rec(os, to_multi_ary_expr(expr));
282 };
283
284 expr_map[ID_plus] = multi_ary_expr;
285 expr_map[ID_mult] = multi_ary_expr;
286 expr_map[ID_and] = multi_ary_expr;
287 expr_map[ID_or] = multi_ary_expr;
288 expr_map[ID_xor] = multi_ary_expr;
289
290 auto binary_infix_expr =
291 [](std::ostream &os, const exprt &expr) -> std::ostream & {
292 return format_rec(os, to_binary_expr(expr));
293 };
294
295 expr_map[ID_lt] = binary_infix_expr;
296 expr_map[ID_gt] = binary_infix_expr;
297 expr_map[ID_ge] = binary_infix_expr;
298 expr_map[ID_le] = binary_infix_expr;
299 expr_map[ID_div] = binary_infix_expr;
300 expr_map[ID_minus] = binary_infix_expr;
301 expr_map[ID_implies] = binary_infix_expr;
302 expr_map[ID_equal] = binary_infix_expr;
303 expr_map[ID_notequal] = binary_infix_expr;
304
305 auto binary_prefix_expr =
306 [](std::ostream &os, const exprt &expr) -> std::ostream & {
307 os << expr.id() << '(' << format(to_binary_expr(expr).op0()) << ", "
308 << format(to_binary_expr(expr).op1()) << ')';
309 return os;
310 };
311
312 expr_map[ID_ieee_float_equal] = binary_prefix_expr;
313 expr_map[ID_ieee_float_notequal] = binary_prefix_expr;
314
315 auto unary_expr = [](std::ostream &os, const exprt &expr) -> std::ostream & {
316 return format_rec(os, to_unary_expr(expr));
317 };
318
319 expr_map[ID_not] = unary_expr;
320 expr_map[ID_unary_minus] = unary_expr;
321
322 auto unary_with_parentheses_expr =
323 [](std::ostream &os, const exprt &expr) -> std::ostream & {
324 return os << expr.id() << '(' << format(to_unary_expr(expr).op()) << ')';
325 };
326
327 expr_map[ID_isnan] = unary_with_parentheses_expr;
328 expr_map[ID_isinf] = unary_with_parentheses_expr;
329 expr_map[ID_isfinite] = unary_with_parentheses_expr;
330 expr_map[ID_isnormal] = unary_with_parentheses_expr;
331
332 auto ternary_expr =
333 [](std::ostream &os, const exprt &expr) -> std::ostream & {
334 return format_rec(os, to_ternary_expr(expr));
335 };
336
337 expr_map[ID_floatbv_plus] = ternary_expr;
338 expr_map[ID_floatbv_minus] = ternary_expr;
339 expr_map[ID_floatbv_mult] = ternary_expr;
340 expr_map[ID_floatbv_div] = ternary_expr;
341 expr_map[ID_floatbv_mod] = ternary_expr;
342
343 expr_map[ID_constant] =
344 [](std::ostream &os, const exprt &expr) -> std::ostream & {
345 return format_rec(os, to_constant_expr(expr));
346 };
347
348 expr_map[ID_address_of] =
349 [](std::ostream &os, const exprt &expr) -> std::ostream & {
350 const auto &address_of = to_address_of_expr(expr);
351 return os << "address_of(" << format(address_of.object()) << ')';
352 };
353
354 expr_map[ID_annotated_pointer_constant] =
355 [](std::ostream &os, const exprt &expr) -> std::ostream & {
356 const auto &annotated_pointer = to_annotated_pointer_constant_expr(expr);
357 return os << format(annotated_pointer.symbolic_pointer());
358 };
359
360 expr_map[ID_typecast] =
361 [](std::ostream &os, const exprt &expr) -> std::ostream & {
362 return os << "cast(" << format(to_typecast_expr(expr).op()) << ", "
363 << format(expr.type()) << ')';
364 };
365
366 expr_map[ID_floatbv_typecast] =
367 [](std::ostream &os, const exprt &expr) -> std::ostream & {
368 const auto &floatbv_typecast_expr = to_floatbv_typecast_expr(expr);
369 return os << "floatbv_typecast(" << format(floatbv_typecast_expr.op())
370 << ", " << format(floatbv_typecast_expr.type()) << ", "
371 << format(floatbv_typecast_expr.rounding_mode()) << ')';
372 };
373
374 auto byte_extract =
375 [](std::ostream &os, const exprt &expr) -> std::ostream & {
376 const auto &byte_extract_expr = to_byte_extract_expr(expr);
377 return os << expr.id() << '(' << format(byte_extract_expr.op()) << ", "
378 << format(byte_extract_expr.offset()) << ", "
379 << format(byte_extract_expr.type()) << ')';
380 };
381
382 expr_map[ID_byte_extract_little_endian] = byte_extract;
383 expr_map[ID_byte_extract_big_endian] = byte_extract;
384
385 auto byte_update = [](std::ostream &os, const exprt &expr) -> std::ostream & {
386 const auto &byte_update_expr = to_byte_update_expr(expr);
387 return os << expr.id() << '(' << format(byte_update_expr.op()) << ", "
388 << format(byte_update_expr.offset()) << ", "
389 << format(byte_update_expr.value()) << ", "
390 << format(byte_update_expr.type()) << ')';
391 };
392
393 expr_map[ID_byte_update_little_endian] = byte_update;
394 expr_map[ID_byte_update_big_endian] = byte_update;
395
396 expr_map[ID_member] =
397 [](std::ostream &os, const exprt &expr) -> std::ostream & {
398 return os << format(to_member_expr(expr).op()) << '.'
400 };
401
402 expr_map[ID_symbol] =
403 [](std::ostream &os, const exprt &expr) -> std::ostream & {
404 return os << to_symbol_expr(expr).get_identifier();
405 };
406
407 expr_map[ID_index] =
408 [](std::ostream &os, const exprt &expr) -> std::ostream & {
409 const auto &index_expr = to_index_expr(expr);
410 return os << format(index_expr.array()) << '[' << format(index_expr.index())
411 << ']';
412 };
413
414 expr_map[ID_type] =
415 [](std::ostream &os, const exprt &expr) -> std::ostream & {
416 return format_rec(os, expr.type());
417 };
418
419 expr_map[ID_forall] =
420 [](std::ostream &os, const exprt &expr) -> std::ostream & {
421 os << u8"\u2200 ";
422 bool first = true;
423 for(const auto &symbol : to_quantifier_expr(expr).variables())
424 {
425 if(first)
426 first = false;
427 else
428 os << ", ";
429 os << format(symbol) << " : " << format(symbol.type());
430 }
431 return os << " . " << format(to_quantifier_expr(expr).where());
432 };
433
434 expr_map[ID_exists] =
435 [](std::ostream &os, const exprt &expr) -> std::ostream & {
436 os << u8"\u2203 ";
437 bool first = true;
438 for(const auto &symbol : to_quantifier_expr(expr).variables())
439 {
440 if(first)
441 first = false;
442 else
443 os << ", ";
444 os << format(symbol) << " : " << format(symbol.type());
445 }
446 return os << " . " << format(to_quantifier_expr(expr).where());
447 };
448
449 expr_map[ID_let] = [](std::ostream &os, const exprt &expr) -> std::ostream & {
450 const auto &let_expr = to_let_expr(expr);
451
452 os << "LET ";
453
454 bool first = true;
455
456 const auto &values = let_expr.values();
457 auto values_it = values.begin();
458 for(auto &v : let_expr.variables())
459 {
460 if(first)
461 first = false;
462 else
463 os << ", ";
464
465 os << format(v) << " = " << format(*values_it);
466 ++values_it;
467 }
468
469 return os << " IN " << format(let_expr.where());
470 };
471
472 expr_map[ID_lambda] =
473 [](std::ostream &os, const exprt &expr) -> std::ostream & {
474 const auto &lambda_expr = to_lambda_expr(expr);
475
476 os << u8"\u03bb ";
477
478 bool first = true;
479
480 for(auto &v : lambda_expr.variables())
481 {
482 if(first)
483 first = false;
484 else
485 os << ", ";
486
487 os << format(v);
488 }
489
490 return os << " . " << format(lambda_expr.where());
491 };
492
493 auto compound = [](std::ostream &os, const exprt &expr) -> std::ostream & {
494 os << "{ ";
495
496 bool first = true;
497
498 for(const auto &op : expr.operands())
499 {
500 if(first)
501 first = false;
502 else
503 os << ", ";
504
505 os << format(op);
506 }
507
508 return os << " }";
509 };
510
511 expr_map[ID_array] = compound;
512 expr_map[ID_struct] = compound;
513
514 expr_map[ID_array_of] =
515 [](std::ostream &os, const exprt &expr) -> std::ostream & {
516 const auto &array_of_expr = to_array_of_expr(expr);
517 return os << "array_of(" << format(array_of_expr.what()) << ')';
518 };
519
520 expr_map[ID_if] = [](std::ostream &os, const exprt &expr) -> std::ostream & {
521 const auto &if_expr = to_if_expr(expr);
522 return os << '(' << format(if_expr.cond()) << " ? "
523 << format(if_expr.true_case()) << " : "
524 << format(if_expr.false_case()) << ')';
525 };
526
527 expr_map[ID_string_constant] =
528 [](std::ostream &os, const exprt &expr) -> std::ostream & {
529 return os << '"' << expr.get_string(ID_value) << '"';
530 };
531
532 expr_map[ID_function_application] =
533 [](std::ostream &os, const exprt &expr) -> std::ostream & {
534 const auto &function_application_expr = to_function_application_expr(expr);
535 os << format(function_application_expr.function()) << '(';
536 bool first = true;
537 for(auto &argument : function_application_expr.arguments())
538 {
539 if(first)
540 first = false;
541 else
542 os << ", ";
543 os << format(argument);
544 }
545 os << ')';
546 return os;
547 };
548
549 expr_map[ID_dereference] =
550 [](std::ostream &os, const exprt &expr) -> std::ostream & {
551 const auto &dereference_expr = to_dereference_expr(expr);
552 os << '*';
553 if(dereference_expr.pointer().id() != ID_symbol)
554 os << '(' << format(dereference_expr.pointer()) << ')';
555 else
556 os << format(dereference_expr.pointer());
557 return os;
558 };
559
560 expr_map[ID_saturating_minus] =
561 [](std::ostream &os, const exprt &expr) -> std::ostream & {
562 const auto &saturating_minus = to_saturating_minus_expr(expr);
563 return os << "saturating-(" << format(saturating_minus.lhs()) << ", "
564 << format(saturating_minus.rhs()) << ')';
565 };
566
567 expr_map[ID_saturating_plus] =
568 [](std::ostream &os, const exprt &expr) -> std::ostream & {
569 const auto &saturating_plus = to_saturating_plus_expr(expr);
570 return os << "saturating+(" << format(saturating_plus.lhs()) << ", "
571 << format(saturating_plus.rhs()) << ')';
572 };
573
574 expr_map[ID_object_address] =
575 [](std::ostream &os, const exprt &expr) -> std::ostream & {
576 const auto &object_address_expr = to_object_address_expr(expr);
577 return os << u8"\u275d" << object_address_expr.object_identifier()
578 << u8"\u275e";
579 };
580
581 expr_map[ID_object_size] =
582 [](std::ostream &os, const exprt &expr) -> std::ostream & {
583 const auto &object_size_expr = to_object_size_expr(expr);
584 return os << "object_size(" << format(object_size_expr.op()) << ')';
585 };
586
587 expr_map[ID_pointer_offset] =
588 [](std::ostream &os, const exprt &expr) -> std::ostream & {
589 const auto &pointer_offset_expr = to_pointer_offset_expr(expr);
590 return os << "pointer_offset(" << format(pointer_offset_expr.op()) << ')';
591 };
592
593 expr_map[ID_field_address] =
594 [](std::ostream &os, const exprt &expr) -> std::ostream & {
595 const auto &field_address_expr = to_field_address_expr(expr);
596 return os << format(field_address_expr.base()) << u8".\u275d"
597 << field_address_expr.component_name() << u8"\u275e";
598 };
599
600 fallback = [](std::ostream &os, const exprt &expr) -> std::ostream & {
601 return fallback_format_rec(os, expr);
602 };
603}
604
607{
608 auto m_it = expr_map.find(expr.id());
609 if(m_it == expr_map.end())
610 return fallback;
611 else
612 return m_it->second;
613}
614
616
618{
619 format_expr_config.expr_map[id] = std::move(formatter);
620}
621
622std::ostream &format_rec(std::ostream &os, const exprt &expr)
623{
624 auto &formatter = format_expr_config.find_formatter(expr);
625 return formatter(os, expr);
626}
mp_integer bvrep2integer(const irep_idt &src, std::size_t width, bool is_signed)
convert a bit-vector representation (possibly signed) to integer
API to expression classes for bitvectors.
const saturating_minus_exprt & to_saturating_minus_expr(const exprt &expr)
Cast an exprt to a saturating_minus_exprt.
const saturating_plus_exprt & to_saturating_plus_expr(const exprt &expr)
Cast an exprt to a saturating_plus_exprt.
Expression classes for byte-level operators.
const byte_update_exprt & to_byte_update_expr(const exprt &expr)
const byte_extract_exprt & to_byte_extract_expr(const exprt &expr)
uint64_t u8
pointer_typet pointer_type(const typet &subtype)
Definition c_types.cpp:235
A base class for binary expressions.
Definition std_expr.h:638
std::size_t get_width() const
Definition std_types.h:920
A constant literal expression.
Definition std_expr.h:2987
const irep_idt & get_value() const
Definition std_expr.h:2995
dstringt has one field, an unsigned integer no which is an index into a static table of strings.
Definition dstring.h:38
bool starts_with(const char *s) const
equivalent of as_string().starts_with(s)
Definition dstring.h:95
Base class for all expressions.
Definition expr.h:56
bool has_operands() const
Return true if there is at least one operand.
Definition expr.h:91
bool is_true() const
Return whether the expression is a constant representing true.
Definition expr.cpp:27
bool is_false() const
Return whether the expression is a constant representing false.
Definition expr.cpp:34
typet & type()
Return the type of the expression.
Definition expr.h:84
operandst & operands()
Definition expr.h:94
void setup()
setup the expressions we can format
std::unordered_map< irep_idt, formattert > expr_mapt
std::function< std::ostream &(std::ostream &, const exprt &)> formattert
const formattert & find_formatter(const exprt &)
find the formatter for a given expression
std::string pretty(unsigned indent=0, unsigned max_indent=0) const
Definition irep.cpp:482
const irep_idt & id() const
Definition irep.h:388
named_subt & get_named_sub()
Definition irep.h:450
irep_idt get_component_name() const
Definition std_expr.h:2863
A base class for multi-ary expressions Associativity is not specified.
Definition std_expr.h:912
const typet & base_type() const
The type of the data what we point to.
const irep_idt & get_identifier() const
Definition std_expr.h:160
An expression with three operands.
Definition std_expr.h:67
exprt & op0()
Definition expr.h:133
exprt & op1()
Definition expr.h:136
exprt & op2()
Definition expr.h:139
Generic base class for unary expressions.
Definition std_expr.h:361
const exprt & op() const
Definition std_expr.h:391
bool is_null_pointer(const constant_exprt &expr)
Returns true if expr has a pointer type and a value NULL; it also returns true when expr has value ze...
Deprecated expression utility functions.
API to expression classes for floating-point arithmetic.
const floatbv_typecast_exprt & to_floatbv_typecast_expr(const exprt &expr)
Cast an exprt to a floatbv_typecast_exprt.
static format_containert< T > format(const T &o)
Definition format.h:37
static bool bracket_subexpression(const exprt &sub_expr, const exprt &expr)
We use the precendences that most readers expect (i.e., the ones you learn in primary school),...
format_expr_configt format_expr_config
const std::map< irep_idt, infix_opt > infix_map
void add_format_hook(irep_idt id, format_expr_configt::formattert formatter)
std::ostream & fallback_format_rec(std::ostream &os, const exprt &expr)
static std::ostream & format_rec(std::ostream &os, const multi_ary_exprt &src)
This formats a multi-ary expression, adding parentheses where indicated by bracket_subexpression.
const std::string & id2string(const irep_idt &d)
Definition irep.h:44
API to expression classes for 'mathematical' expressions.
const quantifier_exprt & to_quantifier_expr(const exprt &expr)
Cast an exprt to a quantifier_exprt.
const function_application_exprt & to_function_application_expr(const exprt &expr)
Cast an exprt to a function_application_exprt.
const lambda_exprt & to_lambda_expr(const exprt &expr)
Cast an exprt to a lambda_exprt.
const mp_integer string2integer(const std::string &n, unsigned base)
Definition mp_arith.cpp:54
const std::string integer2string(const mp_integer &n, unsigned base)
Definition mp_arith.cpp:103
API to expression classes for Pointers.
const annotated_pointer_constant_exprt & to_annotated_pointer_constant_expr(const exprt &expr)
Cast an exprt to an annotated_pointer_constant_exprt.
const object_address_exprt & to_object_address_expr(const exprt &expr)
Cast an exprt to an object_address_exprt.
const address_of_exprt & to_address_of_expr(const exprt &expr)
Cast an exprt to an address_of_exprt.
const pointer_typet & to_pointer_type(const typet &type)
Cast a typet to a pointer_typet.
const dereference_exprt & to_dereference_expr(const exprt &expr)
Cast an exprt to a dereference_exprt.
const pointer_offset_exprt & to_pointer_offset_expr(const exprt &expr)
Cast an exprt to a pointer_offset_exprt.
const field_address_exprt & to_field_address_expr(const exprt &expr)
Cast an exprt to an field_address_exprt.
const object_size_exprt & to_object_size_expr(const exprt &expr)
Cast an exprt to a object_size_exprt.
const array_of_exprt & to_array_of_expr(const exprt &expr)
Cast an exprt to an array_of_exprt.
Definition std_expr.h:1598
const index_exprt & to_index_expr(const exprt &expr)
Cast an exprt to an index_exprt.
Definition std_expr.h:1533
const ternary_exprt & to_ternary_expr(const exprt &expr)
Cast an exprt to a ternary_exprt.
Definition std_expr.h:116
const typecast_exprt & to_typecast_expr(const exprt &expr)
Cast an exprt to a typecast_exprt.
Definition std_expr.h:2102
const binary_exprt & to_binary_expr(const exprt &expr)
Cast an exprt to a binary_exprt.
Definition std_expr.h:715
const unary_exprt & to_unary_expr(const exprt &expr)
Cast an exprt to a unary_exprt.
Definition std_expr.h:426
const multi_ary_exprt & to_multi_ary_expr(const exprt &expr)
Cast an exprt to a multi_ary_exprt.
Definition std_expr.h:987
const let_exprt & to_let_expr(const exprt &expr)
Cast an exprt to a let_exprt.
Definition std_expr.h:3320
const if_exprt & to_if_expr(const exprt &expr)
Cast an exprt to an if_exprt.
Definition std_expr.h:2450
const member_exprt & to_member_expr(const exprt &expr)
Cast an exprt to a member_exprt.
Definition std_expr.h:2933
const constant_exprt & to_constant_expr(const exprt &expr)
Cast an exprt to a constant_exprt.
Definition std_expr.h:3037
const symbol_exprt & to_symbol_expr(const exprt &expr)
Cast an exprt to a symbol_exprt.
Definition std_expr.h:272
const equal_exprt & to_equal_expr(const exprt &expr)
Cast an exprt to an equal_exprt.
Definition std_expr.h:1402
std::string escape(const std::string &s)
Generic escaping of strings; this is not meant to be a particular programming language.
const char * rep