S32 check_multiplication(const IOperand &first, const IOperand &second)
{
S32 value1 = getValueI(first.toString());
S32 value2 = getValueI(second.toString());
long long result = (long long)value1 * (long long) value2;
if (first.getType() == Int32 || second.getType() == Int32)
{
if ((S32)result != result)
throw Erreur(Overflow);
else if (result / (long long)value2 != (long long)value1)
throw Erreur(Overflow);
return (S32)result;
}
else if (first.getType() == Int16 || second.getType() == Int16)
{
if ((S16)result != result)
throw Erreur(Overflow);
else if (result /(long long)value2 != (long long)value1)
throw Erreur(Overflow);
return (S16)result;
}
else
{
if ((S8)result != result)
throw Erreur(Overflow);
else if (result /(long long)value2 != (long long)value1)
throw Erreur(Overflow);
return (S8)result;
}
}
S32 check_soustraction(const IOperand &first, const IOperand &second)
{
S32 value1 = getValueI(first.toString());
S32 value2 = getValueI(second.toString());
long long result = (long long)value1 - (long long)value2;
if (first.getType() == Int16 || second.getType() == Int16)
{
if ((S16)result != result)
throw Erreur(Overflow);
return ((S16)result);
}
else if (first.getType() == Int8 || second.getType() == Int8)
{
if ((S8)result != result)
throw Erreur(Overflow);
return ((S8)result);
}
else
{
if ((S32)result != result)
throw Erreur(Overflow);
return ((S32)result);
}
}
S32 check_modulo(const IOperand &first, const IOperand &second)
{
S32 value1 = getValueI(first.toString());
S32 value2 = getValueI(second.toString());
long long result;
result = (long long)value1 % (long long)value2;
if (first.getType() == Int32 || second.getType() == Int32)
return (S32)result;
else if (first.getType() == Int16 || second.getType() == Int16)
return (S16)result;
else
return (S8)result;
}
S32 check_addition(const IOperand &first, const IOperand &second)
{
S32 value1 = getValueI(first.toString());
S32 value2 = getValueI(second.toString());
S32 result = value1 + value2;
if (first.getType() == Int16 || second.getType() == Int16)
result = (S16)result;
else if (first.getType() == Int8 || second.getType() == Int8)
result = (S8)result;
if (value1 == 0 || value2 == 0);
else if (value1 > 0 && value2 > 0)
{
if (result < value1 || result < value2)
throw Erreur(Overflow);
}
else if (getValueI(first.toString()) < 0 && getValueI(second.toString()) < 0)
{
if (result > value1 || result > value2)
throw Erreur(Underflow);
}
return result;
}
void testOverloadMod(void) {
Hatchery hatchery;
IOperand *firstOperand = hatchery.createOperand(Int8, "8");
IOperand *secondOperand = hatchery.createOperand(Float, "42.50");
IOperand *thirdOperand = *secondOperand % *firstOperand;
if (UnitTests::isNotEqual(thirdOperand->getType(), Float)) {
printError("Add Overload is not returning the right type for IOperand");
}
if (UnitTests::isNotEqual(thirdOperand->toString(), "2")) {
printError("Add Overload is not returning the right value for IOperand");
}
}
void VM::assert( IOperand const & o ) {
std::istringstream iss;
double thisValue;
double operandValue;
iss.str(_stack.back()->toString());
iss >> thisValue;
iss.clear();
iss.str(o.toString());
iss >> operandValue;
bool operandsHaveSameType = (_stack.back()->getType() == o.getType());
bool operandsAreEqual = (thisValue == operandValue);
if (!(operandsAreEqual && operandsHaveSameType))
throw AssertionFailedException();
}
bool VmStack::assert(void)
{
IOperand *last;
if (this->stack.empty())
{
throw VmStack::Error("Stack", "assert on a empty stack");
return false;
}
else
{
last = this->stack.back();
if (!last || last->toString() != this->argument.second || last->getType() != this->argument.first)
throw VmStack::Error("Execution", "assert is not verify");
}
return true;
}
bool VmStack::print(void)
{
IOperand *p;
if (this->stack.empty())
{
throw VmStack::Error("Stack", "print on a empty stack");
return false;
}
else
{
p = this->stack.back();
if (p->getType() == Int8)
std::cout << Transform::stringToValue<int8>(p->toString()) << std::endl;
else
throw VmStack::Error("Execution", "print on a non-int8 value");
}
return true;
}