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Only consider last NULL argument in varFuncNullUB #8297

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Only consider last NULL argument in varFuncNullUB #8297

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2 changes: 1 addition & 1 deletion lib/checkother.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3557,7 +3557,7 @@ void CheckOther::checkVarFuncNullUB()
for (const Scope * scope : symbolDatabase->functionScopes) {
for (const Token* tok = scope->bodyStart; tok != scope->bodyEnd; tok = tok->next()) {
// Is NULL passed to a function?
if (Token::Match(tok,"[(,] NULL [,)]")) {
if (Token::Match(tok,"[(,] NULL )")) {
// Locate function name in this function call.
const Token *ftok = tok;
int argnr = 1;
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6 changes: 6 additions & 0 deletions test/testother.cpp
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Expand Up @@ -11295,6 +11295,12 @@ class TestOther : public TestFixture {
check("void a(char *p, ...);\n"
"void b() { a(NULL, 2); }");
ASSERT_EQUALS("", errout_str());

checkP("extern const int sentinel;\n"
"void a(int, ...);\n"
"#define b(x, ...) a((x), __VA_ARGS__, &sentinel)\n"
"void c() { b(1, NULL); }");
ASSERT_EQUALS("", errout_str());
}

void checkCastIntToCharAndBack() { // #160
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