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ast: ban signed EXP, fixing #1246

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This commit is contained in:
Yoichi Hirai
2016-10-25 16:49:10 +02:00
parent 578b02bb37
commit 3ca5900b8c
2 changed files with 5 additions and 1 deletions
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libsolidity/ast/Types.cpp
+4 -1
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@@ -349,11 +349,14 @@ TypePointer IntegerType::binaryOperatorResult(Token::Value _operator, TypePointe
return commonType;
if (Token::isBooleanOp(_operator))
return TypePointer();
// Nothing else can be done with addresses
if (auto intType = dynamic_pointer_cast<IntegerType const>(commonType))
{
// Nothing else can be done with addresses
if (intType->isAddress())
return TypePointer();
// Signed EXP is not allowed
if (Token::Exp == _operator && intType->isSigned())
return TypePointer();
}
else if (auto fixType = dynamic_pointer_cast<FixedPointType const>(commonType))
if (Token::Exp == _operator)