1 files changed, 5 insertions, 0 deletions
diff --git a/core/fxcrt/cfx_bytestring.cpp b/core/fxcrt/cfx_bytestring.cpp
index b83c59ffeb..967bcce0eb 100644
--- a/core/fxcrt/cfx_bytestring.cpp
+++ b/core/fxcrt/cfx_bytestring.cpp
@@ -867,8 +867,13 @@ FX_STRSIZE FX_ftoa(float d, char* buf) {
   }
   return buf_size;
 }
+
 CFX_ByteString CFX_ByteString::FormatFloat(float d, int precision) {
   char buf[32];
   FX_STRSIZE len = FX_ftoa(d, buf);
   return CFX_ByteString(buf, len);
 }
+
+std::ostream& operator<<(std::ostream& os, const CFX_ByteString& str) {
+  return os.write(str.c_str(), str.GetLength());
+}