add_ function

Tensor add_(dynamic a, dynamic b, { double alpha = 1, })

Implementation

Tensor add_(dynamic a, dynamic b, {double alpha = 1}) {
  if (a is num) {
    return add_(b, a, alpha: alpha);
  } else if (a is Tensor) {
    if (b is Tensor) {
      final alphaScalar = float64_to_scalar(alpha);

      Tensor_add_(a._tensorPtr, b._tensorPtr, alphaScalar.scalarPtr);
      final errorMsg = _get_and_reset_last_err();
      if (errorMsg != nullptr) {
        final errorString = errorMsg.cast<Utf8>().toDartString();

        throw Exception(errorString);
      }

      final tensor = Tensor._internal(a._tensorPtr);

      return tensor;
    } else if (b is num) {
      if (b is int) {
        final alphaScalar = float64_to_scalar(alpha);
        final rightScalar = int32_to_scalar(b);

        Tensor_add_scalar_(
            a._tensorPtr, rightScalar.scalarPtr, alphaScalar.scalarPtr);
        final errorMsg = _get_and_reset_last_err();
        if (errorMsg != nullptr) {
          final errorString = errorMsg.cast<Utf8>().toDartString();

          throw Exception(errorString);
        }

        final tensor = Tensor._internal(a._tensorPtr);
        return tensor;
      } else if (b is double) {
        final alphaScalar = float64_to_scalar(alpha);
        final rightScalar = float64_to_scalar(b);

        Tensor_add_scalar_(
            a._tensorPtr, rightScalar.scalarPtr, alphaScalar.scalarPtr);
        final errorMsg = _get_and_reset_last_err();
        if (errorMsg != nullptr) {
          final errorString = errorMsg.cast<Utf8>().toDartString();

          throw Exception(errorString);
        }

        final tensor = Tensor._internal(a._tensorPtr);
        return tensor;
      } else {
        throw Exception("wrong data type");
      }
    } else {
      throw Exception("wrong data type.");
    }
  } else {
    throw Exception("wrong data type");
  }
}