fixed and issue exposed by gcc (although that's not the correct fix)

Author: dietmarkuehl

include/beman/execution26/detail/basic_sender.hpp

@@ -72,25 +72,25 @@ namespace beman::execution26::detail
 #if __cpp_explicit_this_parameter < 202110L
         template <typename Env>
         auto get_completion_signatures(Env&&) &&
-            -> ::beman::execution26::detail::completion_signatures_for<basic_sender&&, Env>
+            -> ::beman::execution26::detail::completion_signatures_for<basic_sender, Env>
         {
             return {};
         }
         template <typename Env>
         auto get_completion_signatures(Env&&) const&&
-            -> ::beman::execution26::detail::completion_signatures_for<basic_sender const&&, Env>
+            -> ::beman::execution26::detail::completion_signatures_for<basic_sender, Env>
         {
             return {};
         }
         template <typename Env>
         auto get_completion_signatures(Env&&) &
-            -> ::beman::execution26::detail::completion_signatures_for<basic_sender&, Env>
+            -> ::beman::execution26::detail::completion_signatures_for<basic_sender, Env>
         {
             return {};
         }
         template <typename Env>
         auto get_completion_signatures(Env&&) const& 
-            -> ::beman::execution26::detail::completion_signatures_for<basic_sender const&, Env>
+            -> ::beman::execution26::detail::completion_signatures_for<basic_sender, Env>
         {
             return {};
         }

include/beman/execution26/detail/common.hpp

@@ -8,6 +8,7 @@
 
 #if defined(__GNUC__)
 #    pragma GCC diagnostic ignored "-Wmissing-braces"
+#    pragma GCC diagnostic ignored "-Wmissing-field-initializers"
 #endif
 
 #if defined(__clang__)

src/beman/execution26/tests/CMakeLists.txt

@@ -2,8 +2,9 @@
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 list(APPEND execution_tests
-    meta-transform.pass
     exec-then.pass
+    exec-just.pass
+    meta-transform.pass
     exec-read-env.pass
     exec-get-delegation-scheduler.pass
     exec-snd-apply.pass
@@ -12,7 +13,6 @@ list(APPEND execution_tests
     exec-into-variant.pass
     exec-run-loop-types.pass
     exec-run-loop-general.pass
-    exec-just.pass
     exec-snd-expos.pass
     exec-recv-concepts.pass
     forward-like.pass

src/beman/execution26/tests/exec-just.pass.cpp

@@ -181,4 +181,8 @@ auto main() -> int
 {
     test_just_constraints();
     test_just();
+    using type = test_detail::call_result_t<test_std::get_completion_signatures_t,
+        decltype(test_std::just()), test_std::empty_env>;
+
+    static_assert(std::same_as<test_std::completion_signatures<test_std::set_value_t()>, type>);
 }

src/beman/execution26/tests/exec-then.pass.cpp

@@ -62,11 +62,11 @@ namespace
             test_std::completion_signatures<Completions...>,
             test_std::completion_signatures_of_t<decltype(sender), test_std::empty_env>
         >);
-    };
+    }
 
     auto test_then_type() -> void
     {
-        test_then_type< test_std::set_value_t()>(test_std::just() | test_std::then([]{}));
+        test_then_type< test_std::set_value_t()>(test_std::just(0) | test_std::then([](auto){}));
         test_then_type< test_std::set_value_t(int)>(test_std::just() | test_std::then([]{ return 0; }));
         test_then_type< test_std::set_error_t(int)>(test_std::just_error(0) | test_std::then([]{ return 0; }));
         test_then_type< test_std::set_stopped_t()>(test_std::just_stopped() | test_std::then([]{ return 0; }));
@@ -150,6 +150,7 @@ namespace
                 test_std::set_stopped_t()
             >() | test_std::upon_stopped([]{}));
     }
+
     auto test_then_value() -> void
     {
         assert(std::tuple{17} == *test_std::sync_wait(
@@ -178,4 +179,4 @@ auto main() -> int
     test_then_type();
     test_then_multi_type();
     test_then_value();
-}
+}