diff --git a/modules/c++/str/include/str/Convert.h b/modules/c++/str/include/str/Convert.h
index ca154a6a1..5e29d8c14 100644
--- a/modules/c++/str/include/str/Convert.h
+++ b/modules/c++/str/include/str/Convert.h
@@ -55,13 +55,19 @@ template <typename T> int getPrecision(const types::ComplexInteger<T>&);
 // Note that std::to_string() doesn't necessarily generate the same output as writing
 // to std::cout; see https://en.cppreference.com/w/cpp/string/basic_string/to_string
 template <typename T>
-std::string toString_(const T& value)
+std::string toString__(const T& value, int precision)
 {
     std::ostringstream buf;
-    buf.precision(getPrecision(value));
+    buf.precision(precision);
     buf << std::boolalpha << value;
     return buf.str();
 }
+
+template <typename T>
+std::string toString_(const T& value)
+{
+    return toString__(value, getPrecision(value));
+}
 template <typename T>
 inline std::string toString(const T& value)
 {