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Fix #11875: hang in hasBorrowingVariables() #5337

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merged 2 commits into from
Aug 18, 2023
Merged

Fix #11875: hang in hasBorrowingVariables() #5337

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71a9139
Fix hang in hasBorrowingVariables()
chrchr-github Aug 16, 2023
fa0f3d7
Undo, add test
chrchr-github Aug 16, 2023
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5 changes: 2 additions & 3 deletions lib/valueflow.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -4259,10 +4259,9 @@ struct LifetimeStore {
static bool hasBorrowingVariables(const std::list<Variable>& vars, const std::vector<const Token*>& args, int depth = 10)
{
if (depth < 0)
return false;
return true;
return std::any_of(vars.cbegin(), vars.cend(), [&](const Variable& var) {
const ValueType* vt = var.valueType();
if (vt) {
if (const ValueType* vt = var.valueType()) {
if (vt->pointer > 0 &&
std::none_of(args.begin(), args.end(), [vt](const Token* arg) {
return arg->valueType() && arg->valueType()->type == vt->type;
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11 changes: 11 additions & 0 deletions test/testvalueflow.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -7359,6 +7359,17 @@ class TestValueFlow : public TestFixture {
" if (llabs(0x80000000ffffffffL) == 0x7fffffff00000001L) {}\n"
"}\n";
valueOfTok(code, "f");

code = "struct T {\n"
" T();\n"
" static T a[6][64];\n"
" static T b[2][64];\n"
" static T c[64][64];\n"
" static T d[2][64];\n"
" static T e[64];\n"
" static T f[64];\n"
"};\n";
valueOfTok(code, "(");
}

void valueFlowCrashConstructorInitialization() { // #9577
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