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-rw-r--r--libcxx/include/numeric2
1 files changed, 1 insertions, 1 deletions
diff --git a/libcxx/include/numeric b/libcxx/include/numeric
index 6be60801b1a..4b08611290d 100644
--- a/libcxx/include/numeric
+++ b/libcxx/include/numeric
@@ -556,7 +556,7 @@ midpoint(_TPtr __a, _TPtr __b) noexcept
template <typename _Tp>
-int __sign(_Tp __val) {
+constexpr int __sign(_Tp __val) {
return (_Tp(0) < __val) - (__val < _Tp(0));
}
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