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[Clang] Diagnose dangling references in std::vector. #111753

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Merged
merged 2 commits into from
Oct 14, 2024
Merged

[Clang] Diagnose dangling references in std::vector. #111753

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354b334
[clang] Diagnose the dangling references for vector.
hokein Oct 9, 2024
239728a
Address review comment.
hokein Oct 14, 2024
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2 changes: 1 addition & 1 deletion clang/lib/Sema/CheckExprLifetime.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -404,7 +404,7 @@ shouldTrackFirstArgumentForConstructor(const CXXConstructExpr *Ctor) {
if (LHSRecordDecl->hasAttr<PointerAttr>())
return true;

if (Ctor->getConstructor()->getNumParams() != 1 ||
if (Ctor->getConstructor()->getNumParams() < 1 ||
!isContainerOfPointer(LHSRecordDecl))
return false;

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6 changes: 4 additions & 2 deletions clang/test/Sema/warn-lifetime-analysis-nocfg.cpp
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Expand Up @@ -164,14 +164,16 @@ template<typename T>
struct initializer_list {
const T* ptr; size_t sz;
};
template <typename T>
template<typename T> class allocator {};
template <typename T, typename Alloc = allocator<T>>
struct vector {
typedef __gnu_cxx::basic_iterator<T> iterator;
iterator begin();
iterator end();
const T *data() const;
vector();
vector(initializer_list<T> __l);
vector(initializer_list<T> __l,
const Alloc& alloc = Alloc());

template<typename InputIterator>
vector(InputIterator first, InputIterator __last);
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