From: Jonathan Wakely <jwakely@redhat.com>
Date: Wed, 2 Nov 2022 12:52:34 +0000 (+0000)
Subject: libstdc++: Remove more redundant union members
X-Git-Tag: basepoints/gcc-14~3589
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=41602c85ac2414edfbca5c4b0ba520d47f0189ce;p=thirdparty%2Fgcc.git

libstdc++: Remove more redundant union members

We don't need these 'unused' members because they're never used, and a
union with a single variant member is fine.

libstdc++-v3/ChangeLog:

	* libsupc++/eh_globals.cc (constant_init::unused): Remove.
	* src/c++11/system_error.cc (constant_init::unused): Remove.
	* src/c++17/memory_resource.cc (constant_init::unused): Remove.
---

diff --git a/libstdc++-v3/libsupc++/eh_globals.cc b/libstdc++-v3/libsupc++/eh_globals.cc
index 0aadb692a962..12abfc105217 100644
--- a/libstdc++-v3/libsupc++/eh_globals.cc
+++ b/libstdc++-v3/libsupc++/eh_globals.cc
@@ -73,7 +73,6 @@ namespace
   struct constant_init
   {
     union {
-      unsigned char unused;
       __cxa_eh_globals obj;
     };
     constexpr constant_init() : obj() { }
diff --git a/libstdc++-v3/src/c++11/system_error.cc b/libstdc++-v3/src/c++11/system_error.cc
index 8c13642408de..5707e6b61d69 100644
--- a/libstdc++-v3/src/c++11/system_error.cc
+++ b/libstdc++-v3/src/c++11/system_error.cc
@@ -49,7 +49,6 @@ namespace
     struct constant_init
     {
       union {
-	unsigned char unused;
 	T obj;
       };
       constexpr constant_init() : obj() { }
diff --git a/libstdc++-v3/src/c++17/memory_resource.cc b/libstdc++-v3/src/c++17/memory_resource.cc
index 8bc55a69f1f0..651d07489aaf 100644
--- a/libstdc++-v3/src/c++17/memory_resource.cc
+++ b/libstdc++-v3/src/c++17/memory_resource.cc
@@ -82,7 +82,6 @@ namespace pmr
       struct constant_init
       {
 	union {
-	  unsigned char unused;
 	  T obj;
 	};
 	constexpr constant_init() : obj() { }