diff --git a/libstdc++-v3/include/bits/vector.tcc b/libstdc++-v3/include/bits/vector.tcc
index f197278d52e..29aa63e4742 100644
--- a/libstdc++-v3/include/bits/vector.tcc
+++ b/libstdc++-v3/include/bits/vector.tcc
@@ -1134,11 +1134,12 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
 	{
 	  const size_type __len = 
 	    _M_check_len(__n, "vector<bool>::_M_fill_insert");
+	  iterator __begin = begin(), __end = end();
 	  _Bit_pointer __q = this->_M_allocate(__len);
 	  iterator __start(std::__addressof(*__q), 0);
-	  iterator __i = _M_copy_aligned(begin(), __position, __start);
+	  iterator __i = _M_copy_aligned(__begin, __position, __start);
 	  std::fill(__i, __i + difference_type(__n), __x);
-	  iterator __finish = std::copy(__position, end(),
+	  iterator __finish = std::copy(__position, __end,
 					__i + difference_type(__n));
 	  this->_M_deallocate();
 	  this->_M_impl._M_end_of_storage = __q + _S_nword(__len);
diff --git a/libstdc++-v3/testsuite/23_containers/vector/bool/capacity/114758.cc b/libstdc++-v3/testsuite/23_containers/vector/bool/capacity/114758.cc
new file mode 100644
index 00000000000..c56d50afddb
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/vector/bool/capacity/114758.cc
@@ -0,0 +1,12 @@
+// { dg-options "-O3 -Werror=stringop-overread -fno-assume-sane-operators-new-delete" }
+// { dg-do compile }
+
+// Bug libstdc++/114758 The layout of a std::vector<bool> reports a warning
+
+#include <vector>
+
+void pr114758(std::vector<bool>& v)
+{
+  v.resize(3);
+  v = std::vector<bool>(3, false);
+}