CBMC
expr_initializer.h
Go to the documentation of this file.
1 /*******************************************************************\
2 
3 Module: Expression Initialization
4 
5 Author: Daniel Kroening, kroening@kroening.com
6 
7 \*******************************************************************/
8 
11 
12 #ifndef CPROVER_UTIL_EXPR_INITIALIZER_H
13 #define CPROVER_UTIL_EXPR_INITIALIZER_H
14 
15 #include <optional>
16 
17 class exprt;
18 class namespacet;
19 class source_locationt;
20 class typet;
21 
22 std::optional<exprt>
23 zero_initializer(const typet &, const source_locationt &, const namespacet &);
24 
25 std::optional<exprt> nondet_initializer(
26  const typet &type,
27  const source_locationt &source_location,
28  const namespacet &ns);
29 
30 std::optional<exprt> expr_initializer(
31  const typet &type,
32  const source_locationt &source_location,
33  const namespacet &ns,
34  const exprt &init_byte_expr);
35 
36 exprt duplicate_per_byte(
37  const exprt &init_byte_expr,
38  const typet &output_type,
39  const namespacet &ns);
40 
41 #endif // CPROVER_UTIL_EXPR_INITIALIZER_H
exprt
Base class for all expressions.
Definition: expr.h:56
namespacet
A namespacet is essentially one or two symbol tables bound together, to allow for symbol lookups in t...
Definition: namespace.h:94
source_locationt
Definition: source_location.h:20
typet
The type of an expression, extends irept.
Definition: type.h:29
typet::source_location
const source_locationt & source_location() const
Definition: type.h:72
duplicate_per_byte
exprt duplicate_per_byte(const exprt &init_byte_expr, const typet &output_type, const namespacet &ns)
Builds an expression of the given output type with each of its bytes initialized to the given initial...
Definition: expr_initializer.cpp:381
zero_initializer
std::optional< exprt > zero_initializer(const typet &, const source_locationt &, const namespacet &)
Create the equivalent of zero for type type.
Definition: expr_initializer.cpp:308
nondet_initializer
std::optional< exprt > nondet_initializer(const typet &type, const source_locationt &source_location, const namespacet &ns)
Create a non-deterministic value for type type, with all subtypes independently expanded as non-deter...
Definition: expr_initializer.cpp:324
expr_initializer
std::optional< exprt > expr_initializer(const typet &type, const source_locationt &source_location, const namespacet &ns, const exprt &init_byte_expr)
Create a value for type type, with all subtype bytes initialized to the given value.
Definition: expr_initializer.cpp:340