void c_typecastt::implicit_typecast_arithmetic(
exprt &expr,
c_typet c_type)
{
typet new_type;
const typet &expr_type=ns.follow(expr.type());
switch(c_type)
{
case PTR:
if(expr_type.id()==ID_array)
{
new_type.id(ID_pointer);
new_type.subtype()=expr_type.subtype();
break;
}
return;
case BOOL: new_type=bool_typet(); break;
case CHAR: assert(false); // should always be promoted to int
case UCHAR: assert(false); // should always be promoted to int
case SHORT: assert(false); // should always be promoted to int
case USHORT: assert(false); // should always be promoted to int
case INT: new_type=int_type(); break;
case UINT: new_type=uint_type(); break;
case LONG: new_type=long_int_type(); break;
case ULONG: new_type=long_uint_type(); break;
case LONGLONG: new_type=long_long_int_type(); break;
case ULONGLONG: new_type=long_long_uint_type(); break;
case SINGLE: new_type=float_type(); break;
case DOUBLE: new_type=double_type(); break;
case LONGDOUBLE: new_type=long_double_type(); break;
case RATIONAL: new_type=rational_typet(); break;
case REAL: new_type=real_typet(); break;
case INTEGER: new_type=integer_typet(); break;
case COMPLEX: return; // do nothing
default: return;
}
if(new_type!=expr_type)
{
if(new_type.id()==ID_pointer &&
expr_type.id()==ID_array)
{
exprt index_expr(ID_index, expr_type.subtype());
index_expr.reserve_operands(2);
index_expr.move_to_operands(expr);
index_expr.copy_to_operands(gen_zero(index_type()));
expr=exprt(ID_address_of, new_type);
expr.move_to_operands(index_expr);
}
else
do_typecast(expr, new_type);
}
}
void printf_formattert::process_format(std::ostream &out)
{
exprt tmp;
format_constantt format_constant;
format_constant.precision=6;
format_constant.min_width=0;
format_constant.zero_padding=false;
char ch=next();
if(ch=='0') // leading zeros
{
format_constant.zero_padding=true;
ch=next();
}
while(isdigit(ch)) // width
{
format_constant.min_width*=10;
format_constant.min_width+=ch-'0';
ch=next();
}
if(ch=='.') // precision
{
format_constant.precision=0;
ch=next();
while(isdigit(ch))
{
format_constant.precision*=10;
format_constant.precision+=ch-'0';
ch=next();
}
}
switch(ch)
{
case '%':
out << ch;
break;
case 'f':
case 'F':
if(next_operand==operands.end()) break;
out << format_constant(
make_type(*(next_operand++), double_type()));
break;
case 'g':
case 'G':
if(format_constant.precision==0) format_constant.precision=1;
if(next_operand==operands.end()) break;
out << format_constant(
make_type(*(next_operand++), double_type()));
break;
case 's':
{
if(next_operand==operands.end()) break;
// this is the address of a string
const exprt &op=*(next_operand++);
if(op.id()==ID_address_of &&
op.operands().size()==1 &&
op.op0().id()==ID_index &&
op.op0().operands().size()==2 &&
op.op0().op0().id()==ID_string_constant)
out << format_constant(op.op0().op0());
}
break;
case 'd':
if(next_operand==operands.end()) break;
out << format_constant(
make_type(*(next_operand++), int_type()));
break;
case 'D':
if(next_operand==operands.end()) break;
out << format_constant(
make_type(*(next_operand++), long_int_type()));
break;
case 'u':
if(next_operand==operands.end()) break;
out << format_constant(
make_type(*(next_operand++), uint_type()));
break;
case 'U':
if(next_operand==operands.end()) break;
out << format_constant(
make_type(*(next_operand++), long_uint_type()));
break;
default:
out << '%' << ch;
}
}
