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Rational implemented...trying to figure out exponential

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This commit is contained in:
RJ Catalano
2016-05-09 11:41:02 -05:00
committed by VoR0220
parent 9a075458ad
commit 6fa5e0fac9
2 changed files with 45 additions and 54 deletions
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libsolidity/ast/Types.cpp
+15 -52
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@@ -521,7 +521,6 @@ ConstantNumberType::ConstantNumberType(Literal const& _literal)
}
else
m_value = bigint(_literal.value());
switch (_literal.subDenomination())
{
case Literal::SubDenomination::None:
@@ -564,28 +563,14 @@ bool ConstantNumberType::isImplicitlyConvertibleTo(Type const& _convertTo) const
if (m_value == 0)
return true;
int forSignBit = (targetType->isSigned() ? 1 : 0);
if (m_scalingFactor == 0) //if current type is integer
if (m_value > 0)
{
if (m_value > 0)
{
if (m_value <= (u256(-1) >> (256 - targetType->numBits() + forSignBit)))
return true;
}
else if (targetType->isSigned() && -m_value <= (u256(1) << (targetType->numBits() - forSignBit)))
if (m_value <= (u256(-1) >> (256 - targetType->numBits() + forSignBit)))
return true;
return false;
}
else if (m_scalingFactor != 0) //if current type is fixed point
{
if (m_value > 0)
{
if (leftOfRadix() <= (u256(-1) >> (256 - targetType->numBits() + forSignBit)))
return true;
}
else if (targetType->isSigned() && -leftOfRadix() <= (u256(1) << (targetType->numBits() - forSignBit)))
return true;
return false;
}
else if (targetType->isSigned() && -m_value <= (u256(1) << (targetType->numBits() - forSignBit)))
return true;
return false;
}
else if (_convertTo.category() == Category::FixedPoint)
{
@@ -593,35 +578,22 @@ bool ConstantNumberType::isImplicitlyConvertibleTo(Type const& _convertTo) const
if (m_value == 0)
return true;
int forSignBit = (targetType->isSigned() ? 1 : 0);
if (m_scalingFactor == 0) //if the current type is an integer, focus on the integer bits
if (m_value > 0)
{
if (m_value > 0)
{
if (m_value <= (u256(-1) >> (256 - targetType->integerBits() + forSignBit)))
return true;
}
else if (targetType->isSigned() && -m_value <= (u256(1) << (targetType->integerBits() - forSignBit)))
if (
m_value <= (u256(-1) >> (256 - targetType->numBits() + forSignBit)) &&
m_scalingFactor <= targetType->fractionalBits()
)
return true;
return false;
}
else if (m_scalingFactor != 0) //if the current type is fixed point, focus on both the
{ //integer bits and fractional bits and ensure they fit
if (m_value > 0)
{
if (
leftOfRadix() <= (u256(-1) >> (256 - targetType->integerBits() + forSignBit)) &&
rightOfRadix() <= (u256(-1) >> (256 - targetType->fractionalBits() + forSignBit))
)
return true;
}
else if (
targetType->isSigned() &&
-leftOfRadix() <= (u256(1) >> (256 - targetType->integerBits() + forSignBit)) &&
-rightOfRadix() <= (u256(1) >> (256 - targetType->fractionalBits() + forSignBit))
-m_value <= (u256(1) >> (256 - targetType->numBits() + forSignBit)) &&
m_scalingFactor <= targetType->fractionalBits()
)
return true;
return false;
}
}
else if (_convertTo.category() == Category::FixedPoint)
{
@@ -738,18 +710,11 @@ TypePointer ConstantNumberType::binaryOperatorResult(Token::Value _operator, Typ
value = m_value.numerator() & other.m_value.numerator();
break;
case Token::Add:
value = leftOfRadix() + other.leftOfRadix();
value *= boost::multiprecision::pow(bigint(10), scale);
value += rightOfRadix() + other.rightOfRadix();;
value = m_value + other.m_value;
break;
case Token::Sub:
value = leftOfRadix() - other.leftOfRadix();
if (rightOfRadix() < other.rightOfRadix())
scale = other.m_scalingFactor;
value *= boost::multiprecision::pow(bigint(10), scale);
value += (rightOfRadix() - other.rightOfRadix());
value = m_value - other.m_value;
break;
//these next 4 need to be scaled accordingly if it's a fixed type
case Token::Mul:
scale = m_scalingFactor - other.m_scalingFactor;
value = m_value * other.m_value;
@@ -761,7 +726,6 @@ TypePointer ConstantNumberType::binaryOperatorResult(Token::Value _operator, Typ
value = m_value / other.m_value;
break;
case Token::Mod:
{
if (other.m_value == 0)
return TypePointer();
else if (fixedPointType)
@@ -815,7 +779,6 @@ string ConstantNumberType::toString(bool) const
{
if (m_value.denominator() == 1)
return "int_const " + m_value.numerator().str();
return "rational_const " + m_value.numerator().str() + '/' + m_value.denominator().str();
}