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

winner245 · winner245 · commit db02531aa6f2 · 2024-10-28T13:15:24.000-04:00
diff --git a/libcxx/include/__vector/vector.h b/libcxx/include/__vector/vector.h
@@ -165,10 +165,12 @@ class _LIBCPP_TEMPLATE_VIS vector {
   _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
`@@ -165,10 +165,12 @@ class _LIBCPP_TEMPLATE_VIS vector {`
`165`	`165`	`_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI`
`166`	`166`	`vector(size_type __n, const value_type& __x, const allocator_type& __a)`
`167`	`167`	`: __alloc_(__a) {`
	`168`	`+ auto __guard = std::__make_exception_guard(__destroy_vector(*this));`
`168`	`169`	`if (__n > 0) {`
`169`	`170`	`__vallocate(__n);`
`170`	`171`	`__construct_at_end(__n, __x);`
`171`	`172`	`}`
	`173`	`+ __guard.__complete();`
`172`	`174`	`}`
`173`	`175`
`174`	`176`	`template <class _InputIterator,`