21 if(parameters.empty())
24 if(parameters.size()!=2 &&
28 error() <<
"main expected to have no or two or three parameters" <<
eom;
34 const exprt &op0=static_cast<const exprt &>(parameters[0]);
35 const exprt &op1=static_cast<const exprt &>(parameters[1]);
41 argc_symbol.
name=
"argc'";
46 if(argc_symbol.
type.
id()!=ID_signedbv &&
47 argc_symbol.
type.
id()!=ID_unsignedbv)
50 error() <<
"argc argument expected to be integer type, but got `" 59 if(op1.
type().
id()!=ID_pointer ||
63 error() <<
"argv argument expected to be pointer-to-pointer type, " 80 argv_symbol.name=
"argv'";
81 argv_symbol.type=argv_type;
82 argv_symbol.is_static_lifetime=
true;
83 argv_symbol.is_lvalue=
true;
89 if(parameters.size()==3)
93 envp_symbol.
name=
"envp'";
94 envp_symbol.
type=(static_cast<const exprt&>(parameters[2])).type();
97 symbolt envp_size_symbol, *envp_new_size_symbol;
99 envp_size_symbol.
name=
"envp_size'";
102 move_symbol(envp_size_symbol, envp_new_size_symbol);
104 if(envp_symbol.
type.
id()!=ID_pointer)
107 error() <<
"envp argument expected to be pointer type, but got `" 114 envp_symbol.
type.
id(ID_array);
irep_idt name
The unique identifier.
void move_symbol(symbolt &symbol, symbolt *&new_symbol)
const code_typet & to_code_type(const typet &type)
Cast a typet to a code_typet.
std::vector< parametert > parameterst
typet & type()
Return the type of the expression.
virtual std::string to_string(const exprt &expr)
const irep_idt & id() const
class symbol_exprt symbol_expr() const
Produces a symbol_exprt for a symbol.
ANSI-C Language Type Checking.
source_locationt source_location
The plus expression Associativity is not specified.
typet type
Type of symbol.
source_locationt location
Source code location of definition of symbol.
Base class for all expressions.
void add_argc_argv(const symbolt &main_symbol)
const parameterst & parameters() const
irep_idt base_name
Base (non-scoped) name.
irept & add(const irep_namet &name)
const typet & subtype() const