From be45fe5d8508b9e6988849ead6471aaad68405e5 Mon Sep 17 00:00:00 2001
From: Hristo Hristov <zingam@outlook.com>
Date: Sat, 10 Jun 2023 12:44:03 +0300
Subject: [PATCH] [libc++][spaceship] P1614R2: Removed ops from `complex`

Implements parts of P1614R2:
- Removed ops from `complex`

Reviewed By: #libc, Mordante

Differential Revision: https://reviews.llvm.org/D152615
---
 libcxx/docs/Status/SpaceshipProjects.csv |  2 +-
 libcxx/include/complex                   | 16 ++++++++++------
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/libcxx/docs/Status/SpaceshipProjects.csv b/libcxx/docs/Status/SpaceshipProjects.csv
index 214ab8b..ddb2d98 100644
--- a/libcxx/docs/Status/SpaceshipProjects.csv
+++ b/libcxx/docs/Status/SpaceshipProjects.csv
@@ -137,7 +137,7 @@ Section,Description,Dependencies,Assignee,Complete
 | `[alg.three.way] <https://wg21.link/alg.three.way>`_",| `lexicographical_compare_three_way <https://reviews.llvm.org/D131395>`_,[comparisons.three.way],Adrian Vogelsgesang,|Complete|
 - `5.11 Clause 26: Numerics library <https://wg21.link/p1614r2#clause-26-numerics-library>`_,,,,
 "| `[complex.syn] <https://wg21.link/complex.syn>`_
-| `[complex.ops] <https://wg21.link/complex.ops>`_",| remove ops `complex <https://reviews.llvm.org/D152615>`_,None,Hristo Hristov,|In Progress|
+| `[complex.ops] <https://wg21.link/complex.ops>`_",| remove ops `complex <https://reviews.llvm.org/D152615>`_,None,Hristo Hristov,|Complete|
 "| `[class.slice.overview] <https://wg21.link/class.slice.overview>`_
 | `[slice.ops] <https://wg21.link/slice.ops>`_",| `slice <https://reviews.llvm.org/D152617>`_,None,Hristo Hristov,|Complete|
 - `5.12 Clause 27: Time library <https://wg21.link/p1614r2#clause-27-time-library>`_,,,,
diff --git a/libcxx/include/complex b/libcxx/include/complex
index 26f189d..d12cfa9 100644
--- a/libcxx/include/complex
+++ b/libcxx/include/complex
@@ -148,12 +148,12 @@ template<class T> complex<T> operator/(const complex<T>&, const T&);          //
 template<class T> complex<T> operator/(const T&, const complex<T>&);          // constexpr in C++20
 template<class T> complex<T> operator+(const complex<T>&);                    // constexpr in C++20
 template<class T> complex<T> operator-(const complex<T>&);                    // constexpr in C++20
-template<class T> bool operator==(const complex<T>&, const complex<T>&); // constexpr in C++14
-template<class T> bool operator==(const complex<T>&, const T&); // constexpr in C++14
-template<class T> bool operator==(const T&, const complex<T>&); // constexpr in C++14
-template<class T> bool operator!=(const complex<T>&, const complex<T>&); // constexpr in C++14
-template<class T> bool operator!=(const complex<T>&, const T&); // constexpr in C++14
-template<class T> bool operator!=(const T&, const complex<T>&); // constexpr in C++14
+template<class T> bool operator==(const complex<T>&, const complex<T>&);      // constexpr in C++14
+template<class T> bool operator==(const complex<T>&, const T&);               // constexpr in C++14
+template<class T> bool operator==(const T&, const complex<T>&);               // constexpr in C++14, removed in C++20
+template<class T> bool operator!=(const complex<T>&, const complex<T>&);      // constexpr in C++14, removed in C++20
+template<class T> bool operator!=(const complex<T>&, const T&);               // constexpr in C++14, removed in C++20
+template<class T> bool operator!=(const T&, const complex<T>&);               // constexpr in C++14, removed in C++20
 
 template<class T, class charT, class traits>
   basic_istream<charT, traits>&
@@ -827,6 +827,8 @@ operator==(const complex<_Tp>& __x, const _Tp& __y)
     return __x.real() == __y && __x.imag() == 0;
 }
 
+#if _LIBCPP_STD_VER <= 17
+
 template<class _Tp>
 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14
 bool
@@ -859,6 +861,8 @@ operator!=(const _Tp& __x, const complex<_Tp>& __y)
     return !(__x == __y);
 }
 
+#endif
+
 // 26.3.7 values:
 
 template <class _Tp, bool = is_integral<_Tp>::value,
-- 
2.7.4