Add buffer resize

1 files changed, 30 insertions, 0 deletions

diff --git a/asl/buffer.hpp b/asl/buffer.hpp
index 9fd8162..aea1cb6 100644
--- a/asl/buffer.hpp
+++ b/asl/buffer.hpp
@@ -190,6 +190,25 @@ private:
         }

     }

 

+    template<typename... Args>

+    void resize_inner(isize_t new_size, Args&&... args)

+        requires constructible_from<T, Args&&...>

+    {

+        ASL_ASSERT(new_size >= 0);

+

+        isize_t old_size = size();

+        resize_uninit(new_size);

+

+        T* data_ptr = data();

+        T* end = data_ptr + new_size;

+

+        // NOLINTNEXTLINE(*-pointer-arithmetic)

+        for (T* it = data_ptr + old_size; it < end; ++it)

+        {

+            construct_at<T>(it, ASL_FWD(args)...);

+        }

+    }

+

 public:

     constexpr buffer() requires default_constructible<Allocator> = default;

     

@@ -324,6 +343,17 @@ public:
         store_size_encoded(encode_size_heap(current_size));

     }

 

+    void resize(isize_t new_size)

+        requires default_constructible<T>

+    {

+        resize_inner(new_size);

+    }

+

+    void resize(isize_t new_size, const T& value)

+    {

+        resize_inner(new_size, value);

+    }

+

     constexpr T& push(auto&&... args)

         requires constructible_from<T, decltype(args)&&...>

     {