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-rw-r--r--src/google/protobuf/stubs/port.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/google/protobuf/stubs/port.h b/src/google/protobuf/stubs/port.h
index 55c41685..9ea34cde 100644
--- a/src/google/protobuf/stubs/port.h
+++ b/src/google/protobuf/stubs/port.h
@@ -47,6 +47,9 @@
#undef PROTOBUF_LITTLE_ENDIAN
#ifdef _WIN32
// Assuming windows is always little-endian.
+ // TODO(xiaofeng): The PROTOBUF_LITTLE_ENDIAN is not only used for
+ // optimization but also for correctness. We should define an
+ // different macro to test the big-endian code path in coded_stream.
#if !defined(PROTOBUF_DISABLE_LITTLE_ENDIAN_OPT_FOR_TEST)
#define PROTOBUF_LITTLE_ENDIAN 1
#endif