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Fix FP when using - as a binary operator #1201

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Merged
danmar merged 1 commit into from
May 4, 2018
Merged

Fix FP when using - as a binary operator #1201

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4 changes: 2 additions & 2 deletions lib/astutils.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -365,9 +365,9 @@ bool isOppositeExpression(bool cpp, const Token * const tok1, const Token * cons
return false;
if (isOppositeCond(true, cpp, tok1, tok2, library, pure))
return true;
if (tok1->str() == "-")
if (tok1->str() == "-" && !tok1->astOperand2())
return isSameExpression(cpp, true, tok1->astOperand1(), tok2, library, pure);
if (tok2->str() == "-")
if (tok2->str() == "-" && !tok1->astOperand2())
return isSameExpression(cpp, true, tok2->astOperand1(), tok1, library, pure);
return false;
}
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3 changes: 3 additions & 0 deletions test/testother.cpp
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Expand Up @@ -3955,6 +3955,9 @@ class TestOther : public TestFixture {

check("void f(int a) { a = a / (-a); }");
ASSERT_EQUALS("", errout.str());

check("bool f(int i){ return !((i - 1) & i); }");
ASSERT_EQUALS("", errout.str());
}

void duplicateVarExpression() {
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