Is this a bug or a over-shortened trick?

[wangkuiyi]

Paddle/paddle/fluid/operators/detail/bytebuffer_stream.h

Line 71 in 5f9da86

byte_count_ += * size = (int)GRPC_SLICE_LENGTH(slice_);

Is this a typo/bug? If not, it seems that we should write it as

*size = static_cast<int>(GRPC_SLICE_LENGTH(slice_));
byte_count_ += size;

[gongweibao]

Writing in this way works well, but it is very confusing. I will fix it.

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惭愧，你已经改完了。。。