Put local utility functions in anonymous namespaces

3 files changed, 12 insertions, 0 deletions

diff --git a/test/test_bitvec.cpp b/test/test_bitvec.cpp
index e03a27f..d25e3ff 100644
--- a/test/test_bitvec.cpp
+++ b/test/test_bitvec.cpp
@@ -16,6 +16,8 @@
 #include <cstddef>
 #include <cstdlib>
 
+namespace {
+
 template<class T, size_t N>
 void
 test_and(Context& ctx)
@@ -324,6 +326,8 @@ test(Context& ctx)
   test_iteration<T, N>(ctx);
 }
 
+} // namespace
+
 int
 main()
 {
diff --git a/test/test_gray_code_rank.cpp b/test/test_gray_code_rank.cpp
index 1bb70cb..26432b8 100644
--- a/test/test_gray_code_rank.cpp
+++ b/test/test_gray_code_rank.cpp
@@ -19,6 +19,8 @@
 #include <cstddef>
 #include <iterator>
 
+namespace {
+
 template<class T, size_t Max, size_t D>
 T
 get_mask(const std::array<size_t, D>& ms, const size_t d, const size_t step)
@@ -106,6 +108,8 @@ test(Context& ctx)
   test_gray_code_rank<T, Max, D>(ctx);
 }
 
+} // namespace
+
 int
 main()
 {
diff --git a/test/test_hilbert.cpp b/test/test_hilbert.cpp
index 53177ec..6a1862d 100644
--- a/test/test_hilbert.cpp
+++ b/test/test_hilbert.cpp
@@ -33,6 +33,8 @@ _Pragma("clang diagnostic pop")
 #include <cstddef>
 #include <cstdint>
 
+namespace {
+
 /// Return a `D`-dimensional point within `ms` per-dimension precision
 template<size_t D>
 std::array<uint64_t, D>
@@ -159,6 +161,8 @@ test_compact(Context& ctx)
   assert(squared_distance(pa, pb) == 1);
 }
 
+} // namespace
+
 int
 main()
 {