[GitHub] wkcn commented on issue #13098: size_array operator returns wrong results on MacOS

[GitBox <gi...@apache.org>]

wkcn commented on issue #13098: size_array operator returns wrong results on MacOS
URL: https://github.com/apache/incubator-mxnet/issues/13098#issuecomment-435547902
 
 
   In [src/operator/tensor/elemwise_unary_op_basic.cc#L546](https://github.com/apache/incubator-mxnet/blob/master/src/operator/tensor/elemwise_unary_op_basic.cc#L546),
   ```c++
     const index_t size_var = in_data.Size();
     memcpy(out_data.dptr_, &size_var, 1U * sizeof(int64_t));
   ```
   
   In `3rdparty/dmlc-core/include/dmlc/data.h`,
   ```c++
   typedef unsigned index_t;  
   ```
   
   It's confusing that `index_t` may not the same as `int64_t`

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