1 files changed, 4 insertions, 3 deletions
diff --git a/libcxx/test/std/numerics/numarray/template.valarray/valarray.cons/copy.pass.cpp b/libcxx/test/std/numerics/numarray/template.valarray/valarray.cons/copy.pass.cpp
index 04ac2cdf1b9..d0417333a40 100644
--- a/libcxx/test/std/numerics/numarray/template.valarray/valarray.cons/copy.pass.cpp
+++ b/libcxx/test/std/numerics/numarray/template.valarray/valarray.cons/copy.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <valarray>
 #include <cassert>
+#include <cstddef>
 
 int main()
 {
@@ -25,7 +26,7 @@ int main()
         std::valarray<T> v(a, N);
         std::valarray<T> v2 = v;
         assert(v2.size() == v.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == v[i]);
     }
     {
@@ -35,7 +36,7 @@ int main()
         std::valarray<T> v(a, N);
         std::valarray<T> v2 = v;
         assert(v2.size() == v.size());
-        for (int i = 0; i < v2.size(); ++i)
+        for (std::size_t i = 0; i < v2.size(); ++i)
             assert(v2[i] == v[i]);
     }
     {
@@ -48,7 +49,7 @@ int main()
         for (int i = 0; i < N; ++i)
         {
             assert(v2[i].size() == v[i].size());
-            for (int j = 0; j < v[i].size(); ++j)
+            for (std::size_t j = 0; j < v[i].size(); ++j)
                 assert(v2[i][j] == v[i][j]);
         }
     }