{"id":2226792,"url":"http://patchwork.ozlabs.org/api/patches/2226792/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/patch/bmm.hhupath8dc.gcc.gcc-TEST.tkaminsk.107.1.3@forge-stage.sourceware.org/","project":{"id":17,"url":"http://patchwork.ozlabs.org/api/projects/17/?format=json","name":"GNU Compiler Collection","link_name":"gcc","list_id":"gcc-patches.gcc.gnu.org","list_email":"gcc-patches@gcc.gnu.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"","list_archive_url":null,"date":"2026-04-22T18:55:19","name":"[v1,03/13] Constructors tests","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"da331ae32ee609018859775c225f70061dcaab60","submitter":{"id":93223,"url":"http://patchwork.ozlabs.org/api/people/93223/?format=json","name":"tkaminsk via Sourceware Forge","email":"forge-bot+tkaminsk@forge-stage.sourceware.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/gcc/patch/bmm.hhupath8dc.gcc.gcc-TEST.tkaminsk.107.1.3@forge-stage.sourceware.org/mbox/","series":[{"id":501097,"url":"http://patchwork.ozlabs.org/api/series/501097/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/list/?series=501097","date":"2026-04-22T18:55:20","name":"libstdc++: optional (P2988R12)","version":1,"mbox":"http://patchwork.ozlabs.org/series/501097/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2226792/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2226792/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","gcc-patches@gcc.gnu.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","gcc-patches@gcc.gnu.org"],"Authentication-Results":["legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org\n 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b=ur4teJIuQxRb0SSQ7aMP+0+BXF+tiASMTeUz7w8+ljwNPG1flr97ZxUP1QxmSTUZKlKwDB/HiX1aBEZ7aTEkZ76wNXLMjE0c4CNW4doT/Ln2K+jpwLlog/wBlcC0yo2BtpFjoe0hWToJnuFwP67adu0EjnrdMqvid99det3Y2qs=","ARC-Message-Signature":"i=1; a=rsa-sha256; d=sourceware.org; s=key;\n t=1776884183; c=relaxed/simple;\n bh=bU1+dcaWweQg0VUjUo1IxRSE3vXHeS7PYtdzpzwSvg4=;\n h=From:Date:Subject:MIME-Version:To:Message-ID;\n b=K40H+hvapfHDt+aEeNt0078rQrdzf28BaTGtEKNyc5KraOFGo+uUPK1lpUq4cTEcGnehXvvp+FOjkFP51LgSQz6EsFJEtEx12ydQT/ruReYPGjr9/Lfw59IWNLxrPwbLu/FKZRfNKtzRXzTNqQZ8qdzuNG5ZvanLGBbtIafUWj4=","ARC-Authentication-Results":"i=1; server2.sourceware.org","From":"tkaminsk via Sourceware Forge\n ","Date":"Wed, 22 Apr 2026 18:55:19 +0000","Subject":"[PATCH v1 03/13] Constructors tests","MIME-Version":"1.0","Content-Type":"text/plain; charset=UTF-8","Content-Transfer-Encoding":"8bit","To":"gcc-patches mailing list ","Message-ID":"\n ","X-Mailer":"batrachomyomachia","X-Pull-Request-Organization":"gcc","X-Pull-Request-Repository":"gcc-TEST","X-Pull-Request":"https://forge.sourceware.org/gcc/gcc-TEST/pulls/107","References":"\n ","In-Reply-To":"\n ","X-Patch-URL":"\n https://forge.sourceware.org/tkaminsk/gcc/commit/2c124c0d290805baf76a0c710090b2c5e9c8efc7","X-BeenThere":"gcc-patches@gcc.gnu.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Gcc-patches mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Reply-To":"gcc-patches mailing list ,\n tkaminsk@gcc.gnu.org","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"},"content":"From: Tomasz Kamiński \n\n---\n .../testsuite/20_util/optional/ref/cons.cc | 358 ++++++++++++++++++\n .../20_util/optional/requirements.cc | 4 +-\n 2 files changed, 360 insertions(+), 2 deletions(-)\n create mode 100644 libstdc++-v3/testsuite/20_util/optional/ref/cons.cc","diff":"diff --git a/libstdc++-v3/testsuite/20_util/optional/ref/cons.cc b/libstdc++-v3/testsuite/20_util/optional/ref/cons.cc\nnew file mode 100644\nindex 000000000000..b696b2e2b786\n--- /dev/null\n+++ b/libstdc++-v3/testsuite/20_util/optional/ref/cons.cc\n@@ -0,0 +1,358 @@\n+// { dg-do run { target c++26 } }\n+\n+#include \n+#include \n+#include \n+\n+struct NonTrivial\n+{\n+ constexpr NonTrivial() {}\n+ constexpr NonTrivial(NonTrivial const&) {};\n+ constexpr ~NonTrivial() {};\n+};\n+\n+struct NonMovable\n+{\n+ constexpr NonMovable() {}\n+ NonMovable(NonMovable&&) = delete;\n+};\n+\n+template\n+struct Conv\n+{\n+ T t;\n+\n+ constexpr operator T() const noexcept\n+ { return t; }\n+};\n+\n+struct Tracker\n+{\n+ int copy = 0;\n+ int move = 0;\n+\n+ Tracker() = default;\n+\n+ constexpr Tracker(Tracker const& o)\n+ : copy(o.copy+1), move(o.move)\n+ {}\n+\n+ constexpr Tracker(Tracker&& o)\n+ : copy(o.copy), move(o.move+1)\n+ {}\n+\n+ Tracker& operator=(Tracker) = delete;\n+};\n+\n+template\n+void\n+test_trivial()\n+{\n+ static_assert(std::is_trivially_copyable_v>);\n+ static_assert(std::is_copy_constructible_v>);\n+ static_assert(std::is_move_constructible_v>);\n+ static_assert(std::is_destructible_v>);\n+}\n+\n+constexpr void\n+test_trivial_all()\n+{\n+ test_trivial();\n+ test_trivial();\n+ test_trivial();\n+ test_trivial>();\n+}\n+\n+constexpr void\n+test_copy()\n+{\n+ Tracker t;\n+ std::optional o1(t);\n+ VERIFY( o1.has_value() );\n+ VERIFY( &o1.value() == &t );\n+ VERIFY( t.copy == 0 );\n+ VERIFY( t.move == 0 );\n+\n+ std::optional o2(o1);\n+ VERIFY( o1.has_value() );\n+ VERIFY( &o1.value() == &t );\n+ VERIFY( o2.has_value() );\n+ VERIFY( &o2.value() == &t );\n+ VERIFY( t.copy == 0 );\n+ VERIFY( t.move == 0 );\n+\n+ std::optional o3(std::move(o1));\n+ VERIFY( o1.has_value() );\n+ VERIFY( &o1.value() == &t );\n+ VERIFY( o3.has_value() );\n+ VERIFY( &o3.value() == &t );\n+ VERIFY( t.copy == 0 );\n+ VERIFY( t.move == 0 );\n+\n+ std::optional e;\n+ VERIFY( !e.has_value() );\n+\n+ std::optional o4(e);\n+ VERIFY( !e.has_value() );\n+ VERIFY( !o4.has_value() );\n+\n+ std::optional o5(std::move(e));\n+ VERIFY( !e.has_value() );\n+ VERIFY( !o5.has_value() );\n+}\n+\n+\n+constexpr void\n+test_from_value()\n+{\n+ NonTrivial v;\n+ const NonTrivial& cv = v;\n+\n+ std::optional o1(v);\n+ VERIFY( o1.has_value() );\n+ VERIFY( &o1.value() == &v );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t const NonTrivial&> );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t NonTrivial> );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t const NonTrivial> );\n+\n+ std::optional o2(std::in_place, v);\n+ VERIFY( o2.has_value() );\n+ VERIFY( &o2.value() == &v );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t std::in_place_t, const NonTrivial&> );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t std::in_place_t, NonTrivial> );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t std::in_place_t, const NonTrivial> );\n+\n+ std::optional co1(v);\n+ VERIFY( co1.has_value() );\n+ VERIFY( &co1.value() == &v );\n+ std::optional co2(cv);\n+ VERIFY( co2.has_value() );\n+ VERIFY( &co2.value() == &v );\n+ // No binding to rvalue\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t NonTrivial> );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t const NonTrivial> );\n+\n+ std::optional co3(std::in_place, v);\n+ VERIFY( co3.has_value() );\n+ VERIFY( &co3.value() == &v );\n+ std::optional co4(std::in_place, cv);\n+ VERIFY( co4.has_value() );\n+ VERIFY( &co4.value() == &v );\n+ // No binding to rvalue\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t std::in_place_t, NonTrivial> );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t std::in_place_t, const NonTrivial> );\n+\n+ // Conversion create a pr-value that would bind to temporary\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t Conv&> );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t const Conv&> );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t Conv> );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t const Conv> );\n+\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t std::in_place_t, Conv&> );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t std::in_place_t, const Conv&> );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t std::in_place_t, Conv> );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t std::in_place_t, const Conv> );\n+\n+ Conv rw(v);\n+ const Conv crw(v);\n+\n+ std::optional ro1(rw);\n+ VERIFY( ro1.has_value() );\n+ VERIFY( &ro1.value() == &v );\n+ std::optional ro2(crw);\n+ VERIFY( ro2.has_value() );\n+ VERIFY( &ro2.value() == &v );\n+ std::optional ro3(std::move(rw));\n+ VERIFY( ro3.has_value() );\n+ VERIFY( &ro3.value() == &v );\n+ std::optional ro4(std::move(crw));\n+ VERIFY( ro4.has_value() );\n+ VERIFY( &ro4.value() == &v );\n+\n+ std::optional ro5(std::in_place, rw);\n+ VERIFY( ro5.has_value() );\n+ VERIFY( &ro5.value() == &v );\n+ std::optional ro6(std::in_place, crw);\n+ VERIFY( ro6.has_value() );\n+ VERIFY( &ro6.value() == &v );\n+ std::optional ro7(std::in_place, std::move(rw));\n+ VERIFY( ro7.has_value() );\n+ VERIFY( &ro7.value() == &v );\n+ std::optional ro8(std::in_place, std::move(crw));\n+ VERIFY( ro8.has_value() );\n+ VERIFY( &ro8.value() == &v );\n+}\n+\n+constexpr void\n+test_from_opt_value()\n+{\n+ std::optional v(std::in_place);\n+ const std::optional& cv = v;\n+\n+ std::optional o1(v);\n+ VERIFY( o1.has_value() );\n+ VERIFY( &o1.value() == &v.value() );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t const std::optional&> );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t std::optional> );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t const std::optional> );\n+\n+ std::optional co1(v);\n+ VERIFY( co1.has_value() );\n+ VERIFY( &co1.value() == &v.value() );\n+ std::optional co2(cv);\n+ VERIFY( co2.has_value() );\n+ VERIFY( &co2.value() == &v.value() );\n+ static_assert( __reference_constructs_from_temporary(const int&, int) );\n+ static_assert( __reference_constructs_from_temporary(const NonTrivial&, NonTrivial) );\n+ // No binding to rvalue\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t std::optional> );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t const std::optional> );\n+\n+ // Conversion create a pr-value that would bind to temporary\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t std::optional>&> );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t const std::optional>&> );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t std::optional>> );\n+ static_assert( !std::is_constructible_v,\n+\t\t\t\t\t const std::optional>> );\n+\n+ std::optional> rw(*v);\n+ std::optional> crw(*v);\n+\n+ std::optional ro1(rw);\n+ VERIFY( ro1.has_value() );\n+ VERIFY( &ro1.value() == &v.value() );\n+ std::optional ro2(crw);\n+ VERIFY( ro2.has_value() );\n+ VERIFY( &ro2.value() == &v.value() );\n+ std::optional ro3(std::move(rw));\n+ VERIFY( ro3.has_value() );\n+ VERIFY( &ro3.value() == &v.value() );\n+ std::optional ro4(std::move(crw));\n+ VERIFY( ro4.has_value() );\n+ VERIFY( &ro4.value() == &v.value() );\n+}\n+\n+constexpr void\n+test_to_opt_value()\n+{\n+ Tracker t;\n+ std::optional r(t);\n+ const std::optional cr(t);\n+\n+ std::optional o1(r);\n+ VERIFY( o1.has_value() );\n+ VERIFY( o1->copy == 1 );\n+ VERIFY( o1->move == 0 );\n+\n+ std::optional o2(cr);\n+ VERIFY( o2.has_value() );\n+ VERIFY( o2->copy == 1 );\n+ VERIFY( o2->move == 0 );\n+\n+ std::optional o3(std::move(r));\n+ VERIFY( o3.has_value() );\n+ VERIFY( o3->copy == 1 );\n+ VERIFY( o3->move == 0 );\n+\n+ std::optional o4(std::move(cr));\n+ VERIFY( o4.has_value() );\n+ VERIFY( o4->copy == 1 );\n+ VERIFY( o4->move == 0 );\n+\n+ std::optional er;\n+ std::optional cer;\n+\n+ std::optional e1(er);\n+ VERIFY( !e1.has_value() );\n+\n+ std::optional e2(cer);\n+ VERIFY( !e2.has_value() );\n+\n+ std::optional e3(std::move(er));\n+ VERIFY( !e3.has_value() );\n+\n+ std::optional e4(std::move(cer));\n+ VERIFY( !e4.has_value() );\n+}\n+\n+constexpr void\n+test_opt_opt()\n+{\n+ std::optional s(43);\n+\n+ std::optional&> o1(s);\n+ VERIFY( o1.has_value() );\n+ VERIFY( &o1.value() == &s );\n+\n+ std::optional&> o2(std::in_place, s);\n+ VERIFY( o2.has_value() );\n+ VERIFY( &o2.value() == &s );\n+\n+ std::optional> o3(o1);\n+ VERIFY( o2.has_value() );\n+ VERIFY( o2.value().has_value() );\n+ VERIFY( o2.value() == 43 );\n+\n+ s.reset();\n+ std::optional&> o4(s);\n+ VERIFY( o4.has_value() );\n+ VERIFY( &o4.value() == &s );\n+ \n+ std::optional&> o5(std::in_place, s);\n+ VERIFY( o5.has_value() );\n+ VERIFY( &o5.value() == &s );\n+\n+ std::optional> o6(o1);\n+ VERIFY( o6.has_value() );\n+ VERIFY( !o6.value().has_value() );\n+ \n+ std::optional> s2(std::in_place);\n+ std::optional&> oo1(s2);\n+ VERIFY( oo1.has_value() );\n+ VERIFY( &oo1.value() == &s2.value() );\n+\n+ s2.reset();\n+ std::optional&> oo2(s2);\n+ VERIFY( !oo2.has_value() );\n+}\n+\n+int main()\n+{\n+ auto test_all = [] {\n+ test_copy();\n+ test_from_value();\n+ test_from_opt_value();\n+ test_to_opt_value();\n+ test_opt_opt();\n+ return true;\n+ };\n+\n+ test_all();\n+ static_assert(test_all());\n+}\ndiff --git a/libstdc++-v3/testsuite/20_util/optional/requirements.cc b/libstdc++-v3/testsuite/20_util/optional/requirements.cc\nindex 3dc787bc89f5..9e8cf83da449 100644\n--- a/libstdc++-v3/testsuite/20_util/optional/requirements.cc\n+++ b/libstdc++-v3/testsuite/20_util/optional/requirements.cc\n@@ -27,9 +27,9 @@\n #elif __cplusplus == 202002L && __cpp_lib_optional != 202106L\n # error \"Feature test macro for optional has wrong value for C++20 in \"\n #elif __cplusplus == 202302L && __cpp_lib_optional != 202110L\n-# error \"Feature test macro for optional has wrong value for C++23 in \"\n+# error \"Feature test macro for optional has wrong value for C++23 in \"\n #elif __cplusplus > 202302L && __cpp_lib_optional != 202506L\n-# error \"Feature test macro for optional has wrong value for C++26 in \"\n+# error \"Feature test macro for optional has wrong value for C++26 in \"\n #endif\n \n #include \n","prefixes":["v1","03/13"]}