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-rw-r--r--include/mruby/dump.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/include/mruby/dump.h b/include/mruby/dump.h
index 1af24ab64..650651a7e 100644
--- a/include/mruby/dump.h
+++ b/include/mruby/dump.h
@@ -28,7 +28,11 @@ int mrb_bdump_irep(mrb_state *mrb, int n, FILE *f,const char *initname);
#define DUMP_TYPE_BIN 1
#define DUMP_TYPE_HEX 2
-/* dump/load error code */
+/* dump/load error code
+ *
+ * NOTE: MRB_DUMP_GENERAL_FAILURE is caused by
+ * unspecified issues like malloc failed.
+ */
#define MRB_DUMP_OK 0
#define MRB_DUMP_GENERAL_FAILURE -1
#define MRB_DUMP_WRITE_FAULT -2