/**********************************************************************

 * File:        errcode.h  (Formerly error.h)

 * Description: Header file for generic error handler class

 * Author:      Ray Smith

 *

 * (C) Copyright 1990, Hewlett-Packard Ltd.

 ** 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.

 *

 **********************************************************************/

#ifndef ERRCODE_H

#define ERRCODE_H

#include <tesseract/export.h> // for TESS_API

namespace tesseract {

/*Control parameters for error()*/

enum TessErrorLogCode {

  DBG = -1,     /*log without alert */

  TESSLOG = 0,  /*alert user */

  TESSEXIT = 1, /*exit after error */

  ABORT = 2     /*abort after error */

};

#if !defined(__GNUC__) && !defined(__attribute__)

# define __attribute__(attr) // compiler without support for __attribute__

#endif

class TESS_API ERRCODE { // error handler class

  const char *message;   // error message

public:

  void error(                  // error print function

      const char *caller,      // function location

      TessErrorLogCode action, // action to take

      const char *format, ...  // fprintf format

  ) const __attribute__((format(printf, 4, 5)));

  void error(const char *caller, TessErrorLogCode action) const {

    error(caller, action, nullptr);

  }

  constexpr ERRCODE(const char *string) : message(string) {} // initialize with string

};

constexpr ERRCODE ASSERT_FAILED("Assert failed");

#define DO_NOTHING static_cast<void>(0)

#define ASSERT_HOST(x) \

  (x) ? DO_NOTHING : ASSERT_FAILED.error(#x, ABORT, "in file %s, line %d", __FILE__, __LINE__)

#define ASSERT_HOST_MSG(x, ...)                                                \

  if (!(x)) {                                                                  \

    tprintf(__VA_ARGS__);                                                      \

    ASSERT_FAILED.error(#x, ABORT, "in file %s, line %d", __FILE__, __LINE__); \

  }

} // namespace tesseract

#endif