Implement P0084r2. Changing emplace return types.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@276230 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/queue b/include/queue
index c657b52..01247a2 100644
--- a/include/queue
+++ b/include/queue
@@ -63,7 +63,7 @@
void push(const value_type& v);
void push(value_type&& v);
- template <class... Args> void emplace(Args&&... args);
+ template <class... Args> reference emplace(Args&&... args);
void pop();
void swap(queue& q) noexcept(is_nothrow_swappable_v<Container>)
@@ -292,8 +292,8 @@
#ifndef _LIBCPP_HAS_NO_VARIADICS
template <class... _Args>
_LIBCPP_INLINE_VISIBILITY
- void emplace(_Args&&... __args)
- {c.emplace_back(_VSTD::forward<_Args>(__args)...);}
+ reference emplace(_Args&&... __args)
+ { return c.emplace_back(_VSTD::forward<_Args>(__args)...);}
#endif // _LIBCPP_HAS_NO_VARIADICS
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_INLINE_VISIBILITY
