From 6c7fd1db481ff10a16ecab958c6542784fa60b9c Mon Sep 17 00:00:00 2001
From: Dominick Allen <djallen@librehumanitas.org>
Date: Wed, 30 Oct 2024 09:51:54 -0500
Subject: Use std::byte* instead of void* for allocators.

---
 include/fud_drain.hpp | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'include/fud_drain.hpp')

diff --git a/include/fud_drain.hpp b/include/fud_drain.hpp
index 5b78b10..d630bc7 100644
--- a/include/fud_drain.hpp
+++ b/include/fud_drain.hpp
@@ -26,8 +26,18 @@
 namespace fud {
 
 struct DrainResult {
-    size_t bytesWritten;
+    size_t bytesDrained;
     FudStatus status;
+    [[nodiscard]] constexpr bool isOkay()
+    {
+        return status == FudStatus::Success;
+    }
+};
+
+template <typename Sink, typename Source>
+concept Drainable = requires (Sink sink, Source source)
+{
+    { sink.drain(source) } -> std::same_as<DrainResult>;
 };
 
 } // namespace fud
-- 
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