CBMC: byte_extract_exprt Class Reference

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byte_extract_exprt Class Reference

Expression of type type extracted from some object op starting at position offset (given in number of bytes). More...

#include <byte_operators.h>

+ Inheritance diagram for byte_extract_exprt:

+ Collaboration diagram for byte_extract_exprt:

Public Member Functions

byte_extract_exprt (irep_idt _id, const exprt &_op, const exprt &_offset, std::size_t bits_per_byte, const typet &_type)

exprt & op ()

exprt & offset ()

const exprt & op () const

const exprt & offset () const

std::size_t get_bits_per_byte () const

void set_bits_per_byte (std::size_t bits_per_byte)

- Public Member Functions inherited from binary_exprt

binary_exprt (const exprt &_lhs, const irep_idt &_id, exprt _rhs)

binary_exprt (exprt _lhs, const irep_idt &_id, exprt _rhs, typet _type)

exprt & lhs ()

const exprt & lhs () const

exprt & rhs ()

const exprt & rhs () const

const exprt & op2 () const =delete

exprt & op2 ()=delete

const exprt & op3 () const =delete

exprt & op3 ()=delete

exprt & op0 ()

const exprt & op0 () const

exprt & op1 ()

const exprt & op1 () const

- Public Member Functions inherited from exprt

exprt ()

exprt (const irep_idt &_id)

exprt (irep_idt _id, typet _type)

exprt (irep_idt _id, typet _type, operandst &&_operands)

exprt (const irep_idt &id, typet type, source_locationt loc)

typet & type ()

Return the type of the expression.

const typet & type () const

bool has_operands () const

Return true if there is at least one operand.

operandst & operands ()

const operandst & operands () const

exprt & with_source_location (source_locationt location) &

Add the source location from location, if it is non-nil.

exprt && with_source_location (source_locationt location) &&

Add the source location from location, if it is non-nil.

exprt & with_source_location (const exprt &other) &

Add the source location from other, if it has any.

exprt && with_source_location (const exprt &other) &&

Add the source location from other, if it has any.

void reserve_operands (operandst::size_type n)

void copy_to_operands (const exprt &expr)

Copy the given argument to the end of exprt's operands.

void add_to_operands (const exprt &expr)

Add the given argument to the end of exprt's operands.

void add_to_operands (exprt &&expr)

Add the given argument to the end of exprt's operands.

void add_to_operands (exprt &&e1, exprt &&e2)

Add the given arguments to the end of exprt's operands.

void add_to_operands (exprt &&e1, exprt &&e2, exprt &&e3)

Add the given arguments to the end of exprt's operands.

bool is_constant () const

Return whether the expression is a constant.

bool is_true () const

Return whether the expression is a constant representing true.

bool is_false () const

Return whether the expression is a constant representing false.

bool is_zero () const

Return whether the expression is a constant representing 0.

bool is_one () const

Return whether the expression is a constant representing 1.

bool is_boolean () const

Return whether the expression represents a Boolean.

const source_locationt & find_source_location () const

Get a source_locationt from the expression or from its operands (non-recursively).

const source_locationt & source_location () const

source_locationt & add_source_location ()

void drop_source_location ()

void visit (class expr_visitort &visitor)

These are pre-order traversal visitors, i.e., the visitor is executed on a node before its children have been visited.

void visit (class const_expr_visitort &visitor) const

void visit_pre (std::function< void(exprt &)>)

void visit_pre (std::function< void(const exprt &)>) const

void visit_post (std::function< void(exprt &)>)

These are post-order traversal visitors, i.e., the visitor is executed on a node after its children have been visited.

void visit_post (std::function< void(const exprt &)>) const

depth_iteratort depth_begin ()

depth_iteratort depth_end ()

const_depth_iteratort depth_begin () const

const_depth_iteratort depth_end () const

const_depth_iteratort depth_cbegin () const

const_depth_iteratort depth_cend () const

depth_iteratort depth_begin (std::function< exprt &()> mutate_root) const

const_unique_depth_iteratort unique_depth_begin () const

const_unique_depth_iteratort unique_depth_end () const

const_unique_depth_iteratort unique_depth_cbegin () const

const_unique_depth_iteratort unique_depth_cend () const

- Public Member Functions inherited from irept

bool is_nil () const

bool is_not_nil () const

irept (const irep_idt &_id)

irept (const irep_idt &_id, const named_subt &_named_sub, const subt &_sub)

irept ()=default

const irep_idt & id () const

const std::string & id_string () const

void id (const irep_idt &_data)

const irept & find (const irep_idt &name) const

irept & add (const irep_idt &name)

irept & add (const irep_idt &name, irept irep)

const std::string & get_string (const irep_idt &name) const

const irep_idt & get (const irep_idt &name) const

bool get_bool (const irep_idt &name) const

signed int get_int (const irep_idt &name) const

std::size_t get_size_t (const irep_idt &name) const

long long get_long_long (const irep_idt &name) const

void set (const irep_idt &name, const irep_idt &value)

void set (const irep_idt &name, irept irep)

void set (const irep_idt &name, const long long value)

void set_size_t (const irep_idt &name, const std::size_t value)

void remove (const irep_idt &name)

void move_to_sub (irept &irep)

void move_to_named_sub (const irep_idt &name, irept &irep)

bool operator== (const irept &other) const

bool operator!= (const irept &other) const

void swap (irept &irep)

bool operator< (const irept &other) const

defines ordering on the internal representation

bool ordering (const irept &other) const

defines ordering on the internal representation

int compare (const irept &i) const

defines ordering on the internal representation comments are ignored

void make_nil ()

subt & get_sub ()

const subt & get_sub () const

named_subt & get_named_sub ()

const named_subt & get_named_sub () const

std::size_t hash () const

std::size_t full_hash () const

bool full_eq (const irept &other) const

std::string pretty (unsigned indent=0, unsigned max_indent=0) const

- Public Member Functions inherited from sharing_treet< irept, forward_list_as_mapt< irep_idt, irept > >

sharing_treet (irep_idt _id)

sharing_treet (irep_idt _id, named_subt _named_sub, subt _sub)

sharing_treet ()

sharing_treet (const sharing_treet &irep)

sharing_treet (sharing_treet &&irep)

sharing_treet & operator= (const sharing_treet &irep)

sharing_treet & operator= (sharing_treet &&irep)

~sharing_treet ()

const dt & read () const

dt & write ()

Additional Inherited Members

- Public Types inherited from exprt

typedef std::vector< exprt > operandst

- Public Types inherited from irept

using baset = tree_implementationt

- Public Types inherited from sharing_treet< irept, forward_list_as_mapt< irep_idt, irept > >

using dt = tree_nodet< irept, forward_list_as_mapt< irep_idt, irept >, true >

using subt = typename dt::subt

using named_subt = typename dt::named_subt

using tree_implementationt = sharing_treet

Used to refer to this class from derived classes.

- Static Public Member Functions inherited from binary_exprt

static void check (const exprt &expr, const validation_modet vm=validation_modet::INVARIANT)

static void validate (const exprt &expr, const namespacet &, const validation_modet vm=validation_modet::INVARIANT)

- Static Public Member Functions inherited from exprt

static void check (const exprt &, const validation_modet=validation_modet::INVARIANT)

Check that the expression is well-formed (shallow checks only, i.e., subexpressions and its type are not checked).

static void validate (const exprt &expr, const namespacet &, const validation_modet vm=validation_modet::INVARIANT)

Check that the expression is well-formed, assuming that its subexpressions and type have all ready been checked for well-formedness.

static void validate_full (const exprt &expr, const namespacet &ns, const validation_modet vm=validation_modet::INVARIANT)

Check that the expression is well-formed (full check, including checks of all subexpressions and the type)

- Static Public Member Functions inherited from irept

static bool is_comment (const irep_idt &name)

static std::size_t number_of_non_comments (const named_subt &)

count the number of named_sub elements that are not comments

- Protected Member Functions inherited from expr_protectedt

expr_protectedt (irep_idt _id, typet _type)

expr_protectedt (irep_idt _id, typet _type, operandst _operands)

exprt & op0 ()

const exprt & op0 () const

exprt & op1 ()

const exprt & op1 () const

exprt & op2 ()

const exprt & op2 () const

exprt & op3 ()

const exprt & op3 () const

- Protected Member Functions inherited from exprt

exprt & op0 ()

exprt & op1 ()

exprt & op2 ()

exprt & op3 ()

const exprt & op0 () const

const exprt & op1 () const

const exprt & op2 () const

const exprt & op3 () const

exprt & add_expr (const irep_idt &name)

const exprt & find_expr (const irep_idt &name) const

- Protected Member Functions inherited from sharing_treet< irept, forward_list_as_mapt< irep_idt, irept > >

- Static Protected Member Functions inherited from sharing_treet< irept, forward_list_as_mapt< irep_idt, irept > >

static void remove_ref (dt *old_data)

static void nonrecursive_destructor (dt *old_data)

Does the same as remove_ref, but using an explicit stack instead of recursion.

- Protected Attributes inherited from sharing_treet< irept, forward_list_as_mapt< irep_idt, irept > >

dt * data

- Static Protected Attributes inherited from sharing_treet< irept, forward_list_as_mapt< irep_idt, irept > >

static dt empty_d

Detailed Description

Expression of type type extracted from some object op starting at position offset (given in number of bytes).

The object can either be interpreted in big endian or little endian, which is reflected by the id of the expression which is either ID_byte_extract_big_endian or ID_byte_extract_little_endian

Definition at line 28 of file byte_operators.h.

Constructor & Destructor Documentation

◆ byte_extract_exprt()

byte_extract_exprt::byte_extract_exprt ( irep_idt _id,

const exprt & _op,

const exprt & _offset,

std::size_t bits_per_byte,

const typet & _type

)

inline

Definition at line 31 of file byte_operators.h.

Member Function Documentation

◆ get_bits_per_byte()

std::size_t byte_extract_exprt::get_bits_per_byte ( ) const

inline

Definition at line 52 of file byte_operators.h.

◆ offset() [1/2]

exprt & byte_extract_exprt::offset ( )

inline

Definition at line 47 of file byte_operators.h.

◆ offset() [2/2]

const exprt & byte_extract_exprt::offset ( ) const

inline

Definition at line 50 of file byte_operators.h.

◆ op() [1/2]

exprt & byte_extract_exprt::op ( )

inline

Definition at line 46 of file byte_operators.h.

◆ op() [2/2]

const exprt & byte_extract_exprt::op ( ) const

inline

Definition at line 49 of file byte_operators.h.

◆ set_bits_per_byte()

void byte_extract_exprt::set_bits_per_byte ( std::size_t bits_per_byte )

inline

Definition at line 57 of file byte_operators.h.

The documentation for this class was generated from the following file:

/home/runner/work/cbmc/cbmc/src/util/byte_operators.h

byte_extract_exprt
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