🏗️ adding anonymous namespace

test/src/unit-to_chars.cpp

@@ -36,6 +36,8 @@ SOFTWARE.
 #include <nlohmann/json.hpp>
 using nlohmann::detail::dtoa_impl::reinterpret_bits;
 
+namespace
+{
 static float make_float(uint32_t sign_bit, uint32_t biased_exponent, uint32_t significand)
 {
     assert(sign_bit == 0 || sign_bit == 1);
@@ -139,6 +141,7 @@ static double make_double(uint64_t f, int e)
     uint64_t bits = (f & kSignificandMask) | (biased_exponent << kPhysicalSignificandSize);
     return reinterpret_bits<double>(bits);
 }
+}
 
 TEST_CASE("digit gen")
 {