From 511faeef4f5b53fd0247dc0db1b8ccc1437af047 Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Fri, 11 Nov 2022 11:18:35 +0100
Subject: a

---
 src/emplacer.hpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 src/emplacer.hpp

(limited to 'src')

diff --git a/src/emplacer.hpp b/src/emplacer.hpp
new file mode 100644
index 00000000..eca115e8
--- /dev/null
+++ b/src/emplacer.hpp
@@ -0,0 +1,16 @@
+#pragma once
+#include <type_traits>
+
+namespace floormat {
+
+template<typename F>
+class emplacer {
+    F fun;
+    using type = std::decay_t<decltype(std::declval<F>()())>;
+
+public:
+    explicit constexpr emplacer(F&& fun) noexcept : fun{std::forward<F>(fun)} {}
+    constexpr operator type() const noexcept { return fun(); }
+};
+
+} // namespace floormat
-- 
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