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Fix #11561 FN nullPointer with unnamed parameter (#4805)

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chrchr-github 2023-02-23 22:56:03 +01:00 committed by GitHub
parent edc9cfba94
commit 96887c8130
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2 changed files with 6 additions and 1 deletions
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2
lib/valueflow.cpp
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@ -7529,7 +7529,7 @@ static void valueFlowFunctionReturn(TokenList *tokenlist, ErrorLogger *errorLogg
ProgramMemory programMemory; ProgramMemory programMemory;
for (std::size_t i = 0; i < parvalues.size(); ++i) { for (std::size_t i = 0; i < parvalues.size(); ++i) {
const Variable * const arg = function->getArgumentVar(i); const Variable * const arg = function->getArgumentVar(i);
if (!arg || !Token::Match(arg->typeStartToken(), "%type% %name% ,|)")) { if (!arg) {
if (tokenlist->getSettings()->debugwarnings) if (tokenlist->getSettings()->debugwarnings)
bailout(tokenlist, errorLogger, tok, "function return; unhandled argument type"); bailout(tokenlist, errorLogger, tok, "function return; unhandled argument type");
programMemory.clear(); programMemory.clear();

5
test/testnullpointer.cpp
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@ -3707,6 +3707,11 @@ private:
ASSERT_EQUALS("[test.cpp:3]: (error) Null pointer dereference: p\n" ASSERT_EQUALS("[test.cpp:3]: (error) Null pointer dereference: p\n"
"[test.cpp:4]: (error) Null pointer dereference\n", "[test.cpp:4]: (error) Null pointer dereference\n",
errout.str()); errout.str());
check("const char* g(long) { return nullptr; }\n" // #11561
"void f() { std::string s = g(0L); }\n");
ASSERT_EQUALS("[test.cpp:2]: (error) Null pointer dereference: g(0L)\n",
errout.str());
} }
void nullpointerStdStream() { void nullpointerStdStream() {