diff options
Diffstat (limited to 'libcxx/test/std')
4 files changed, 19 insertions, 5 deletions
diff --git a/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd/gcd.pass.cpp b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd/gcd.pass.cpp index a52b50b391c..2c1a3b8f3fd 100644 --- a/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd/gcd.pass.cpp +++ b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd/gcd.pass.cpp @@ -129,4 +129,11 @@ int main() assert((do_test<long, int>(non_cce))); assert((do_test<int, long long>(non_cce))); assert((do_test<long long, int>(non_cce))); + +// LWG#2792 + { + auto res = std::gcd((int64_t)1234, (int32_t)-2147483648); + static_assert( std::is_same<decltype(res), std::common_type<int64_t, int32_t>::type>::value, ""); + assert(res == 2); + } } diff --git a/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.lcm/lcm.pass.cpp b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.lcm/lcm.pass.cpp index e3c109f7447..4dd139a8df8 100644 --- a/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.lcm/lcm.pass.cpp +++ b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.lcm/lcm.pass.cpp @@ -128,4 +128,12 @@ int main() assert((do_test<long, int>(non_cce))); assert((do_test<int, long long>(non_cce))); assert((do_test<long long, int>(non_cce))); + +// LWG#2792 + { + auto res1 = std::lcm((int64_t)1234, (int32_t)-2147483648); + (void) std::lcm<int, unsigned long>(INT_MIN, 2); // this used to trigger UBSAN + static_assert( std::is_same<decltype(res1), std::common_type<int64_t, int32_t>::type>::value, ""); + assert(res1 == 1324997410816LL); + } } diff --git a/libcxx/test/std/numerics/numeric.ops/numeric.ops.gcd/gcd.pass.cpp b/libcxx/test/std/numerics/numeric.ops/numeric.ops.gcd/gcd.pass.cpp index 0774bff40d1..961b515ef8d 100644 --- a/libcxx/test/std/numerics/numeric.ops/numeric.ops.gcd/gcd.pass.cpp +++ b/libcxx/test/std/numerics/numeric.ops/numeric.ops.gcd/gcd.pass.cpp @@ -8,7 +8,6 @@ //===----------------------------------------------------------------------===// // // UNSUPPORTED: c++98, c++03, c++11, c++14 -// XFAIL: ubsan // <numeric> diff --git a/libcxx/test/std/numerics/numeric.ops/numeric.ops.lcm/lcm.pass.cpp b/libcxx/test/std/numerics/numeric.ops/numeric.ops.lcm/lcm.pass.cpp index a74ac76a321..90d48398f54 100644 --- a/libcxx/test/std/numerics/numeric.ops/numeric.ops.lcm/lcm.pass.cpp +++ b/libcxx/test/std/numerics/numeric.ops/numeric.ops.lcm/lcm.pass.cpp @@ -8,7 +8,6 @@ //===----------------------------------------------------------------------===// // // UNSUPPORTED: c++98, c++03, c++11, c++14 -// XFAIL: ubsan // <numeric> // template<class _M, class _N> @@ -132,8 +131,9 @@ int main() // LWG#2837 { - auto res = std::lcm((int64_t)1234, (int32_t)-2147483648); - static_assert( std::is_same<decltype(res), std::common_type<int64_t, int32_t>::type>::value, ""); - assert(res == -1324997410816LL); + auto res1 = std::lcm((int64_t)1234, (int32_t)-2147483648); + (void) std::lcm<int, unsigned long>(INT_MIN, 2); // this used to trigger UBSAN + static_assert( std::is_same<decltype(res1), std::common_type<int64_t, int32_t>::type>::value, ""); + assert(res1 == 1324997410816LL); } } |
