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| author | Jonathan Wakely <jwakely@redhat.com> | 2024-06-26 14:15:29 +0100 |
|---|---|---|
| committer | Jonathan Wakely <redi@gcc.gnu.org> | 2024-07-25 11:53:06 +0100 |
| commit | 56ff5f83dda52f73e736a748e43640396d26257b (patch) | |
| tree | e81b354b1f475a799cda58359dee19529df9fba5 | |
| parent | 6d86486292acbeeeda16b4f69455143391845706 (diff) | |
| download | gcc-56ff5f83dda52f73e736a748e43640396d26257b.zip gcc-56ff5f83dda52f73e736a748e43640396d26257b.tar.gz gcc-56ff5f83dda52f73e736a748e43640396d26257b.tar.bz2 | |
libstdc++: Add noexcept to bad_expected_access<void> members (LWG 4031)
libstdc++-v3/ChangeLog:
* include/std/expected (bad_expected_access<void>): Add noexcept
to special member functions, as per LWG 4031.
* testsuite/20_util/expected/bad.cc: Check for nothrow copy and
move members.
| -rw-r--r-- | libstdc++-v3/include/std/expected | 8 | ||||
| -rw-r--r-- | libstdc++-v3/testsuite/20_util/expected/bad.cc | 13 |
2 files changed, 17 insertions, 4 deletions
diff --git a/libstdc++-v3/include/std/expected b/libstdc++-v3/include/std/expected index 2594cfe..3c52f7d 100644 --- a/libstdc++-v3/include/std/expected +++ b/libstdc++-v3/include/std/expected @@ -79,10 +79,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { protected: bad_expected_access() noexcept { } - bad_expected_access(const bad_expected_access&) = default; - bad_expected_access(bad_expected_access&&) = default; - bad_expected_access& operator=(const bad_expected_access&) = default; - bad_expected_access& operator=(bad_expected_access&&) = default; + bad_expected_access(const bad_expected_access&) noexcept = default; + bad_expected_access(bad_expected_access&&) noexcept = default; + bad_expected_access& operator=(const bad_expected_access&) noexcept = default; + bad_expected_access& operator=(bad_expected_access&&) noexcept = default; ~bad_expected_access() = default; public: diff --git a/libstdc++-v3/testsuite/20_util/expected/bad.cc b/libstdc++-v3/testsuite/20_util/expected/bad.cc index c629e14..7e227f9 100644 --- a/libstdc++-v3/testsuite/20_util/expected/bad.cc +++ b/libstdc++-v3/testsuite/20_util/expected/bad.cc @@ -12,3 +12,16 @@ test_pr105146() { std::bad_expected_access(E{}); } + +void +test_lwg4031() +{ + struct test_type : std::bad_expected_access<void> { }; + + static_assert( std::is_nothrow_default_constructible_v<test_type> ); + // LWG 4031. bad_expected_access<void> member functions should be noexcept + static_assert( std::is_nothrow_copy_constructible_v<test_type> ); + static_assert( std::is_nothrow_move_constructible_v<test_type> ); + static_assert( std::is_nothrow_copy_assignable_v<test_type> ); + static_assert( std::is_nothrow_move_assignable_v<test_type> ); +} |