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| author | Marshall Clow <mclow.lists@gmail.com> | 2017-02-10 20:49:08 +0000 |
|---|---|---|
| committer | Marshall Clow <mclow.lists@gmail.com> | 2017-02-10 20:49:08 +0000 |
| commit | 58fc1b50d8b0719460e1bf08734c0e7632fb03c4 (patch) | |
| tree | 9ac7cd4d201cdcd5222550d96aee2af453a1231c /libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd | |
| parent | 278890f85bba9cf006944e67565dfdefece55d7c (diff) | |
| download | bcm5719-llvm-58fc1b50d8b0719460e1bf08734c0e7632fb03c4.tar.gz bcm5719-llvm-58fc1b50d8b0719460e1bf08734c0e7632fb03c4.zip | |
Make lcm/gcd work better in edge cases. Fixes a UBSAN failure.
llvm-svn: 294779
Diffstat (limited to 'libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd')
| -rw-r--r-- | libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd/gcd.pass.cpp | 7 |
1 files changed, 7 insertions, 0 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); + } } |
