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string_set_char_builtin_functiont Class Reference

Setting a character at a particular position of a string. More...

#include <string_builtin_function.h>

Inheritance diagram for string_set_char_builtin_functiont:
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Collaboration diagram for string_set_char_builtin_functiont:
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Public Member Functions

 string_set_char_builtin_functiont (const exprt &return_code, const std::vector< exprt > &fun_args, array_poolt &array_pool)
 Constructor from arguments of a function application. More...
 
optionalt< exprteval (const std::function< exprt(const exprt &)> &get_value) const override
 Given a function get_value which gives a valuation to expressions, attempt to find the result of the builtin function. More...
 
std::string name () const override
 
exprt add_constraints (string_constraint_generatort &generator) const override
 Add constraints ensuring that the value of result expression of the builtin function corresponds to the value of the function call. More...
 
exprt length_constraint () const override
 Constraint ensuring that the length of the strings are coherent with the function call. More...
 
- Public Member Functions inherited from string_transformation_builtin_functiont
 string_transformation_builtin_functiont (const exprt &return_code, const std::vector< exprt > &fun_args, array_poolt &array_pool)
 Constructor from arguments of a function application. More...
 
optionalt< array_string_exprtstring_result () const override
 
std::vector< array_string_exprtstring_arguments () const override
 
bool maybe_testing_function () const override
 Tells whether the builtin function can be a testing function, that is a function that does not return a string, for instance like equals, indexOf or compare. More...
 
- Public Member Functions inherited from string_builtin_functiont
 string_builtin_functiont (const string_builtin_functiont &)=delete
 
virtual ~string_builtin_functiont ()=default
 

Public Attributes

exprt position
 
exprt character
 
- Public Attributes inherited from string_transformation_builtin_functiont
array_string_exprt result
 
array_string_exprt input
 
- Public Attributes inherited from string_builtin_functiont
exprt return_code
 

Additional Inherited Members

- Protected Member Functions inherited from string_builtin_functiont
 string_builtin_functiont (const exprt &return_code)
 

Detailed Description

Setting a character at a particular position of a string.

Definition at line 143 of file string_builtin_function.h.

Constructor & Destructor Documentation

◆ string_set_char_builtin_functiont()

string_set_char_builtin_functiont::string_set_char_builtin_functiont ( const exprt return_code,
const std::vector< exprt > &  fun_args,
array_poolt array_pool 
)
inline

Constructor from arguments of a function application.

The arguments in fun_args should be in order: an integer result.length, a character pointer &result[0], a string arg1 of type refined_string_typet, a position and a character.

Definition at line 154 of file string_builtin_function.h.

References character, position, and PRECONDITION.

Member Function Documentation

◆ add_constraints()

exprt string_set_char_builtin_functiont::add_constraints ( string_constraint_generatort constraint_generator) const
inlineoverridevirtual

Add constraints ensuring that the value of result expression of the builtin function corresponds to the value of the function call.

Implements string_builtin_functiont.

Definition at line 173 of file string_builtin_function.h.

References string_constraint_generatort::add_axioms_for_set_char(), character, string_transformation_builtin_functiont::input, position, and string_transformation_builtin_functiont::result.

◆ eval()

optionalt< exprt > string_set_char_builtin_functiont::eval ( const std::function< exprt(const exprt &)> &  get_value) const
overridevirtual

Given a function get_value which gives a valuation to expressions, attempt to find the result of the builtin function.

If not enough information can be gathered from get_value, return an empty optional.

Implements string_builtin_functiont.

Definition at line 161 of file string_builtin_function.cpp.

References character, eval_string(), from_integer(), string_transformation_builtin_functiont::input, array_string_exprt::length(), make_string(), numeric_cast(), position, string_transformation_builtin_functiont::result, typet::subtype(), and exprt::type().

◆ length_constraint()

exprt string_set_char_builtin_functiont::length_constraint ( ) const
overridevirtual

◆ name()

std::string string_set_char_builtin_functiont::name ( ) const
inlineoverridevirtual

Implements string_builtin_functiont.

Definition at line 168 of file string_builtin_function.h.

Member Data Documentation

◆ character

exprt string_set_char_builtin_functiont::character

◆ position

exprt string_set_char_builtin_functiont::position

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