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-rw-r--r--components/cplusplus/cxx_mail.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/components/cplusplus/cxx_mail.h b/components/cplusplus/cxx_mail.h
index ae3bfb5c41..88770bdd94 100644
--- a/components/cplusplus/cxx_mail.h
+++ b/components/cplusplus/cxx_mail.h
@@ -51,7 +51,7 @@ public:
else
tick = rt_tick_from_millisecond(millisec);
- return rt_mb_send_wait(&mID, (rt_uint32_t)mptr, tick) == RT_EOK;
+ return rt_mb_send_wait(&mID, (rt_ubase_t)mptr, tick) == RT_EOK;
}
/** Get a mail from a queue.