Add exception guard for constructor vector(n, x, a)

winner245 · winner245 · commit 34b6045c8a2f · 2024-10-24T12:09:50.000-04:00
diff --git a/libcxx/include/vector b/libcxx/include/vector
@@ -487,10 +487,12 @@ public:
   _LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI
   vector(size_type __n, const value_type& __x, const allocator_type& __a)
       : __alloc_(__a) {
+    auto __guard = std::__make_exception_guard(__destroy_vector(*this));
     if (__n > 0) {
       __vallocate(__n);
       __construct_at_end(__n, __x);
     }
+    __guard.__complete();
   }
 
   template <class _InputIterator,

Original file line number	Diff line number	Diff line change
`@@ -487,10 +487,12 @@ public:`
`487`	`487`	`_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI`
`488`	`488`	`vector(size_type __n, const value_type& __x, const allocator_type& __a)`
`489`	`489`	`: __alloc_(__a) {`
	`490`	`+ auto __guard = std::__make_exception_guard(__destroy_vector(*this));`
`490`	`491`	`if (__n > 0) {`
`491`	`492`	`__vallocate(__n);`
`492`	`493`	`__construct_at_end(__n, __x);`
`493`	`494`	`}`
	`495`	`+ __guard.__complete();`
`494`	`496`	`}`
`495`	`497`
`496`	`498`	`template <class _InputIterator,`