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Fix #11305 FP uninitvar with unseen typedef (#4612)

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chrchr-github 2022-12-07 09:14:22 +01:00 committed by GitHub
parent 0e57c27dd3
commit 89dba226dd
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2 changed files with 7 additions and 1 deletions
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2
lib/astutils.cpp
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@ -2970,7 +2970,7 @@ ExprUsage getExprUsage(const Token* tok, int indirect, const Settings* settings)
if (Token::simpleMatch(tok->astParent(), "=") && astIsRHS(tok))
return ExprUsage::Used;
// Function call or index
if (Token::Match(tok->astParent(), "(|[") && !tok->astParent()->isCast() &&
if (((Token::simpleMatch(tok->astParent(), "(") && !tok->astParent()->isCast()) || (Token::simpleMatch(tok->astParent(), "[") && tok->valueType())) &&
(astIsLHS(tok) || Token::simpleMatch(tok->astParent(), "( )")))
return ExprUsage::Used;
}

6
test/testuninitvar.cpp
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@ -6363,6 +6363,12 @@ private:
" return L[0][0];\n"
"}\n");
ASSERT_EQUALS("", errout.str());
valueFlowUninit("void f() {\n" // #11305
" type_t a;\n"
" a[0] = 0;\n"
"}\n", "test.c");
ASSERT_EQUALS("", errout.str());
}
void uninitvar_memberaccess() {