// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#pragma once

namespace phi {
namespace funcs {

static inline std::tuple<bool, bool> ParseQrMode(const std::string& mode) {
  bool compute_q;
  bool reduced;
  if (mode == "reduced") {
    compute_q = true;
    reduced = true;
  } else if (mode == "complete") {
    compute_q = true;
    reduced = false;
  } else if (mode == "r") {
    compute_q = false;
    reduced = true;
  } else {
    PADDLE_THROW(errors::InvalidArgument(
        "QR received unrecognized mode '%s'"
        " but expected one of 'reduced' (default), 'r', or 'complete'",
        mode));
  }
  return std::make_tuple(compute_q, reduced);
}
}  // namespace funcs
}  // namespace phi
