// we may expose the ABI of TF_Shape for performance reasons.
typedef struct TF_Shape TF_Shape;

// Return a new, unknown rank shape object. The caller is responsible for
// calling TF_DeleteShape to deallocate and destroy the returned shape.
TF_CAPI_EXPORT extern TF_Shape* TF_NewShape();

// Returns the rank of `shape`. If `shape` has unknown rank, returns -1.

int TF_ShapeDims(const TF_Shape* shape) {
  return tensorflow::unwrap(shape)->dims();
}

int64_t TF_ShapeDimSize(const TF_Shape* shape, int d) {
  return tensorflow::unwrap(shape)->dim_size(d);
}

void TF_DeleteShape(TF_Shape* shape) { delete tensorflow::unwrap(shape); }

TF_CAPI_EXPORT extern TF_DataType TF_TensorSpecDataType(
    const TF_TensorSpec* spec);

// Returns the shape associated with the TensorSpec. The returned Shape is not
// owned by the caller. Caller must not call TF_DeleteShape on the returned
// shape.
TF_CAPI_EXPORT extern const TF_Shape* TF_TensorSpecShape(
    const TF_TensorSpec* spec);

#ifdef __cplusplus
}  // end extern "C"
#endif  // __cplusplus