From 8d1cd579d443890b7ae6af87229d6e73856ee73a Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Mon, 15 Jul 2024 12:56:34 +0200
Subject: w

---
 compat/borrowed-ptr.cpp |  1 -
 compat/borrowed-ptr.hpp | 15 ++++++++++++++-
 compat/borrowed-ptr.inl | 20 ++++++++------------
 3 files changed, 22 insertions(+), 14 deletions(-)

diff --git a/compat/borrowed-ptr.cpp b/compat/borrowed-ptr.cpp
index 04919df0..f6f098fa 100644
--- a/compat/borrowed-ptr.cpp
+++ b/compat/borrowed-ptr.cpp
@@ -1,5 +1,4 @@
 #include "borrowed-ptr.inl"
-#include "compat/assert.hpp"
 
 namespace floormat::detail_bptr {
 
diff --git a/compat/borrowed-ptr.hpp b/compat/borrowed-ptr.hpp
index 65115f94..4da792d1 100644
--- a/compat/borrowed-ptr.hpp
+++ b/compat/borrowed-ptr.hpp
@@ -1,9 +1,17 @@
 #pragma once
 #include "borrowed-ptr-fwd.hpp"
+#include <compare>
+
+namespace floormat { struct bptr_base; }
 
 namespace floormat::detail_bptr {
 
-struct control_block;
+struct control_block final
+{
+    bptr_base* _ptr;
+    uint32_t _count;
+    static void decrement(control_block*& blk) noexcept;
+};
 
 template<typename From, typename To>
 concept StaticCastable = requires(From* from) {
@@ -72,10 +80,15 @@ public:
     T& operator*() const noexcept;
 
     explicit operator bool() const noexcept;
+
     bool operator==(const bptr<const std::remove_const_t<T>>& other) const noexcept;
     bool operator==(const bptr<std::remove_const_t<T>>& other) const noexcept;
     bool operator==(const std::nullptr_t& other) const noexcept;
 
+    std::strong_ordering operator<=>(const bptr<const std::remove_const_t<T>>& other) const noexcept;
+    std::strong_ordering operator<=>(const bptr<std::remove_const_t<T>>& other) const noexcept;
+    std::strong_ordering operator<=>(const std::nullptr_t& other) const noexcept;
+
     template<typename U> friend class bptr;
 
     template<typename To, typename From>
diff --git a/compat/borrowed-ptr.inl b/compat/borrowed-ptr.inl
index 59b4e14a..4d03545d 100644
--- a/compat/borrowed-ptr.inl
+++ b/compat/borrowed-ptr.inl
@@ -20,24 +20,13 @@
 #endif
 #endif
 
-namespace floormat::detail_bptr {
-
-struct control_block final
-{
-    bptr_base* _ptr;
-    uint32_t _count;
-    static void decrement(control_block*& blk) noexcept;
-};
-
-} // namespace floormat::detail_bptr
-
 namespace floormat {
 
 template<typename T>
 template<typename... Ts>
 requires std::is_constructible_v<std::remove_const_t<T>, Ts&&...>
 bptr<T>::bptr(InPlaceInitT, Ts&&... args) noexcept:
-    bptr{ new std::remove_const_t<T>{ forward<Ts...>(args)... } }
+    bptr{ new std::remove_const_t<T>{ forward<Ts>(args)... } }
 {}
 
 template<typename T> bptr<T>::bptr(std::nullptr_t) noexcept: blk{nullptr} {}
@@ -152,10 +141,17 @@ T* bptr<T>::operator->() const noexcept
 }
 
 template<typename T> T& bptr<T>::operator*() const noexcept { return *operator->(); }
+
 template<typename T> bptr<T>::operator bool() const noexcept { return blk && blk->_ptr; }
+
 template<typename T> bool bptr<T>::operator==(const bptr<const std::remove_const_t<T>>& other) const noexcept { return get() == other.get(); }
 template<typename T> bool bptr<T>::operator==(const bptr<std::remove_const_t<T>>& other) const noexcept { return get() == other.get(); }
 template<typename T> bool bptr<T>::operator==(const std::nullptr_t&) const noexcept { return !blk || !blk->_ptr; }
+
+template<typename T> std::strong_ordering bptr<T>::operator<=>(const bptr<const std::remove_const_t<T>>& other) const noexcept { return get() <=> other.get(); }
+template<typename T> std::strong_ordering bptr<T>::operator<=>(const bptr<std::remove_const_t<T>>& other) const noexcept { return get() <=> other.get(); }
+template<typename T> std::strong_ordering bptr<T>::operator<=>(const std::nullptr_t&) const noexcept { return get() <=> nullptr; }
+
 template<typename T> void bptr<T>::swap(bptr& other) noexcept { floormat::swap(blk, other.blk); }
 
 template<typename T>
-- 
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