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Fix #11095 FP constParameter with decremented pointer (#4131)

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chrchr-github 2022-05-28 08:32:58 +02:00 committed by GitHub
parent 16a4449901
commit e1c51940a2
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2 changed files with 8 additions and 0 deletions
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2
lib/checkother.cpp
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@ -1567,6 +1567,8 @@ void CheckOther::checkConstPointer()
deref = true;
else if (Token::simpleMatch(parent, "[") && parent->astOperand1() == tok && tok != nameTok)
deref = true;
else if (Token::Match(parent, "%op%") && Token::simpleMatch(parent->astParent(), "."))
deref = true;
if (deref) {
const Token* const gparent = parent->astParent();
if (Token::Match(gparent, "%cop%") && !gparent->isUnaryOp("&") && !gparent->isUnaryOp("*"))

6
test/testother.cpp
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@ -3105,6 +3105,12 @@ private:
" if (x == nullptr) {}\n"
"}\n");
ASSERT_EQUALS("[test.cpp:2]: (style) Parameter 'x' can be declared as pointer to const\n", errout.str());
check("struct S { void v(); };\n" // #11095
"void f(S* s) {\n"
" (s - 1)->v();\n"
"}\n");
ASSERT_EQUALS("", errout.str());
}
void switchRedundantAssignmentTest() {