From 37620d575111caf3b24d4b9039808334e619c13a Mon Sep 17 00:00:00 2001
From: Jonathan Wakely <jwakely@redhat.com>
Date: Tue, 17 Aug 2021 20:26:52 +0100
Subject: libstdc++: Simplify n-ary arithmetic promotion traits

The std::complex partial specializations have been unnecessary since
774c3d8647cc7012937cfc9d2d6dacc85b6cf8e9

Signed-off-by: Jonathan Wakely <jwakely@redhat.com>

libstdc++-v3/ChangeLog:

	* include/ext/type_traits.h (__promote_2, __promote_3)
	(__promote_4): Redfine as alias templates using __promoted_t.
	* include/std/complex (__promote_2): Remove partial
	specializations for std::complex.
---
 libstdc++-v3/include/std/complex | 29 -----------------------------
 1 file changed, 29 deletions(-)

(limited to 'libstdc++-v3/include/std/complex')

diff --git a/libstdc++-v3/include/std/complex b/libstdc++-v3/include/std/complex
index c2f6421e0b7..a5b4406dd68 100644
--- a/libstdc++-v3/include/std/complex
+++ b/libstdc++-v3/include/std/complex
@@ -1557,35 +1557,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 _GLIBCXX_END_NAMESPACE_VERSION
 } // namespace
 
-namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
-{
-_GLIBCXX_BEGIN_NAMESPACE_VERSION
-
-  // See ext/type_traits.h for the primary template.
-  template<typename _Tp, typename _Up>
-    struct __promote_2<std::complex<_Tp>, _Up>
-    {
-    public:
-      typedef std::complex<typename __promote_2<_Tp, _Up>::__type> __type;
-    };
-
-  template<typename _Tp, typename _Up>
-    struct __promote_2<_Tp, std::complex<_Up> >
-    {
-    public:
-      typedef std::complex<typename __promote_2<_Tp, _Up>::__type> __type;
-    };
-
-  template<typename _Tp, typename _Up>
-    struct __promote_2<std::complex<_Tp>, std::complex<_Up> >
-    {
-    public:
-      typedef std::complex<typename __promote_2<_Tp, _Up>::__type> __type;
-    };
-
-_GLIBCXX_END_NAMESPACE_VERSION
-} // namespace
-
 #if __cplusplus >= 201103L
 
 namespace std _GLIBCXX_VISIBILITY(default)
-- 
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