https://gcc.gnu.org/g:e1b9ccaa10df0192d8c4818258510821727a3de2
commit r16-4120-ge1b9ccaa10df0192d8c4818258510821727a3de2 Author: Jonathan Wakely <[email protected]> Date: Sat Sep 27 12:14:28 2025 +0100 libstdc++: Fix -Wmaybe-uninitialized warnings in testsuite These are false positives, but we might as well just value-init the variables to avoid the warnings. libstdc++-v3/ChangeLog: * testsuite/20_util/allocator_traits/members/allocate_hint.cc: Value-initialize variables to avoid -Wmaybe-uninitialized warning. * testsuite/20_util/allocator_traits/members/allocate_hint_nonpod.cc: Likewise. * testsuite/20_util/duration/114244.cc: Likewise. * testsuite/20_util/duration/io.cc: Likewise. Diff: --- .../testsuite/20_util/allocator_traits/members/allocate_hint.cc | 2 +- .../20_util/allocator_traits/members/allocate_hint_nonpod.cc | 2 +- libstdc++-v3/testsuite/20_util/duration/114244.cc | 4 ++-- libstdc++-v3/testsuite/20_util/duration/io.cc | 8 ++++---- 4 files changed, 8 insertions(+), 8 deletions(-) diff --git a/libstdc++-v3/testsuite/20_util/allocator_traits/members/allocate_hint.cc b/libstdc++-v3/testsuite/20_util/allocator_traits/members/allocate_hint.cc index 214be6ab18b3..94c3fbddb8e1 100644 --- a/libstdc++-v3/testsuite/20_util/allocator_traits/members/allocate_hint.cc +++ b/libstdc++-v3/testsuite/20_util/allocator_traits/members/allocate_hint.cc @@ -74,7 +74,7 @@ void test02() { typedef std::allocator_traits<unhintable_allocator<X>> traits_type; traits_type::allocator_type a; - traits_type::const_void_pointer v; + traits_type::const_void_pointer v = nullptr; X* p __attribute__((unused)) = traits_type::allocate(a, 1, v); VERIFY( a.called ); } diff --git a/libstdc++-v3/testsuite/20_util/allocator_traits/members/allocate_hint_nonpod.cc b/libstdc++-v3/testsuite/20_util/allocator_traits/members/allocate_hint_nonpod.cc index 32bbf2bbf9db..c305b672dc74 100644 --- a/libstdc++-v3/testsuite/20_util/allocator_traits/members/allocate_hint_nonpod.cc +++ b/libstdc++-v3/testsuite/20_util/allocator_traits/members/allocate_hint_nonpod.cc @@ -58,7 +58,7 @@ void test01() { typedef std::allocator_traits<Alloc<int>> traits_type; traits_type::allocator_type a; - traits_type::const_void_pointer v; + traits_type::const_void_pointer v = nullptr; traits_type::pointer p = traits_type::allocate(a, 1, v); traits_type::deallocate(a, p, 1); } diff --git a/libstdc++-v3/testsuite/20_util/duration/114244.cc b/libstdc++-v3/testsuite/20_util/duration/114244.cc index 55a7670522ae..12701bfe85cb 100644 --- a/libstdc++-v3/testsuite/20_util/duration/114244.cc +++ b/libstdc++-v3/testsuite/20_util/duration/114244.cc @@ -13,8 +13,8 @@ test_pr114244() { using namespace std::chrono; seconds s; - milliseconds ms; - microseconds us; + milliseconds ms{}; + microseconds us{}; std::istringstream is; diff --git a/libstdc++-v3/testsuite/20_util/duration/io.cc b/libstdc++-v3/testsuite/20_util/duration/io.cc index 0117673dbdc0..6ada4fcfa842 100644 --- a/libstdc++-v3/testsuite/20_util/duration/io.cc +++ b/libstdc++-v3/testsuite/20_util/duration/io.cc @@ -193,8 +193,8 @@ test_parse() { using namespace std::chrono; seconds s; - milliseconds ms; - microseconds us; + milliseconds ms{}; + microseconds us{}; std::istringstream is(" 2023-07-24 13:05"); VERIFY( is >> parse(" %Y-%m-%d %H:%M", s) ); @@ -289,13 +289,13 @@ test_parse() is.clear(); is.str("0.5"); - std::chrono::duration<double> ds; + std::chrono::duration<double> ds{}; VERIFY( is >> parse("%S", ds) ); VERIFY( ds == 0.5s ); is.clear(); is.str("0.125"); - std::chrono::duration<double, std::milli> dms; + std::chrono::duration<double, std::milli> dms{}; VERIFY( is >> parse("%S", dms) ); VERIFY( dms == 0.125s ); }
