Merge #14028: Explicitly initialize prevector _union

1d9aa008d6e043c29c3c5b030a6d04278aea233b Explicitly initialize prevector _union (Ben Woosley)

Pull request description:

Tree-SHA512: 3037a5d63b840a4cb0c3c26593ce1b7e1a6ba273a4ee5072563b20169be9783dbdfe3a38c9651d73b2d18ed9668deaf65f994eca7f225c70f875716f05eda3a6

1 files changed, 5 insertions, 5 deletions

diff --git a/src/prevector.h b/src/prevector.h
index 7a13b98214..6ddb6f321f 100644
--- a/src/prevector.h
+++ b/src/prevector.h
@@ -248,32 +248,32 @@ public:
 
     prevector() : _size(0), _union{{}} {}
 
-    explicit prevector(size_type n) : _size(0) {
+    explicit prevector(size_type n) : prevector() {
         resize(n);
     }
 
-    explicit prevector(size_type n, const T& val) : _size(0) {
+    explicit prevector(size_type n, const T& val) : prevector() {
         change_capacity(n);
         _size += n;
         fill(item_ptr(0), n, val);
     }
 
     template<typename InputIterator>
-    prevector(InputIterator first, InputIterator last) : _size(0) {
+    prevector(InputIterator first, InputIterator last) : prevector() {
         size_type n = last - first;
         change_capacity(n);
         _size += n;
         fill(item_ptr(0), first, last);
     }
 
-    prevector(const prevector<N, T, Size, Diff>& other) : _size(0) {
+    prevector(const prevector<N, T, Size, Diff>& other) : prevector() {
         size_type n = other.size();
         change_capacity(n);
         _size += n;
         fill(item_ptr(0), other.begin(),  other.end());
     }
 
-    prevector(prevector<N, T, Size, Diff>&& other) : _size(0) {
+    prevector(prevector<N, T, Size, Diff>&& other) : prevector() {
         swap(other);
     }