HTTP now automatically encodes jsonvalue content

luprex/core/cpp/util.hpp

@@ -344,12 +344,15 @@ inline eng::string ss(const ARGS & ... args) {
     return oss.str();
 }
 
-// This is a better way to do std::setfill, std::hex, std::setprecision
+// A better API than std::setfill, std::hex, std::setw, std::setprecision
 //
 // Usage examples:
 //   std::cout << util::hex.width(5).fill('0').val(123)
 //   std::cout << util::dec.fill('$').precision(val(123)
 //
+// The reason that other API is bad is that it can leave std::cout
+// in an unpredictable state.  This API always leaves the stream clean.
+//
 template <class VALUE>
 class FormattedNumber {
 public: