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-rw-r--r--common/almalloc.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/common/almalloc.h b/common/almalloc.h
index 23f9edce..801df1d8 100644
--- a/common/almalloc.h
+++ b/common/almalloc.h
@@ -144,6 +144,49 @@ inline T uninitialized_default_construct_n(T first, N count)
}
+template<typename T0, typename T1>
+inline T1 uninitialized_move(T0 first, const T0 last, const T1 output)
+{
+ using ValueT = typename std::iterator_traits<T1>::value_type;
+ T1 current{output};
+ try {
+ while(first != last)
+ {
+ ::new (static_cast<void*>(std::addressof(*current))) ValueT{std::move(*first)};
+ ++current;
+ ++first;
+ }
+ }
+ catch(...) {
+ destroy(output, current);
+ throw;
+ }
+ return current;
+}
+
+template<typename T0, typename N, typename T1, REQUIRES(std::is_integral<N>::value)>
+inline T1 uninitialized_move_n(T0 first, N count, const T1 output)
+{
+ using ValueT = typename std::iterator_traits<T1>::value_type;
+ T1 current{output};
+ if(count != 0)
+ {
+ try {
+ do {
+ ::new (static_cast<void*>(std::addressof(*current))) ValueT{std::move(*first)};
+ ++current;
+ ++first;
+ } while(--count);
+ }
+ catch(...) {
+ destroy(output, current);
+ throw;
+ }
+ }
+ return current;
+}
+
+
/* std::make_unique was added with C++14, so until we rely on that, make our
* own version.
*/