1 files changed, 9 insertions, 0 deletions
diff --git a/src/google/protobuf/stubs/strutil.h b/src/google/protobuf/stubs/strutil.h
index 7f6bd96..777694b 100644
--- a/src/google/protobuf/stubs/strutil.h
+++ b/src/google/protobuf/stubs/strutil.h
@@ -33,6 +33,7 @@
 #ifndef GOOGLE_PROTOBUF_STUBS_STRUTIL_H__
 #define GOOGLE_PROTOBUF_STUBS_STRUTIL_H__
 
+#include <stdlib.h>
 #include <vector>
 #include <google/protobuf/stubs/common.h>
 
@@ -264,6 +265,14 @@ LIBPROTOBUF_EXPORT int CEscapeString(const char* src, int src_len,
 // ----------------------------------------------------------------------
 LIBPROTOBUF_EXPORT string CEscape(const string& src);
 
+namespace strings {
+// Like CEscape() but does not escape bytes with the upper bit set.
+LIBPROTOBUF_EXPORT string Utf8SafeCEscape(const string& src);
+
+// Like CEscape() but uses hex (\x) escapes instead of octals.
+LIBPROTOBUF_EXPORT string CHexEscape(const string& src);
+}  // namespace strings
+
 // ----------------------------------------------------------------------
 // strto32()
 // strtou32()