1 /********************************************************************** 2 * File: errcode.h (Formerly error.h) 3 * Description: Header file for generic error handler class 4 * Author: Ray Smith 5 * 6 * (C) Copyright 1990, Hewlett-Packard Ltd. 7 ** Licensed under the Apache License, Version 2.0 (the "License"); 8 ** you may not use this file except in compliance with the License. 9 ** You may obtain a copy of the License at 10 ** http://www.apache.org/licenses/LICENSE-2.0 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 * 17 **********************************************************************/ 18 19 #ifndef ERRCODE_H 20 #define ERRCODE_H 21 22 #include <tesseract/export.h> // for TESS_API 23 24 namespace tesseract { 25 26 /*Control parameters for error()*/ 27 enum TessErrorLogCode { 28 DBG = -1, /*log without alert */ 29 TESSLOG = 0, /*alert user */ 30 TESSEXIT = 1, /*exit after error */ 31 ABORT = 2 /*abort after error */ 32 }; 33 34 /* Explicit Error Abort codes */ 35 #define NO_ABORT_CODE 0 36 #define LIST_ABORT 1 37 #define MEMORY_ABORT 2 38 #define FILE_ABORT 3 39 40 #if !defined(__GNUC__) && !defined(__attribute__) 41 # define __attribute__(attr) // compiler without support for __attribute__ 42 #endif 43 44 class TESS_API ERRCODE { // error handler class 45 const char *message; // error message 46 public: 47 void error( // error print function 48 const char *caller, // function location 49 TessErrorLogCode action, // action to take 50 const char *format, ... // fprintf format 51 ) const __attribute__((format(printf, 4, 5))); ERRCODE(const char * string)52 constexpr ERRCODE(const char *string) : message(string) {} // initialize with string 53 }; 54 55 constexpr ERRCODE ASSERT_FAILED("Assert failed"); 56 57 #define DO_NOTHING static_cast<void>(0) 58 59 #define ASSERT_HOST(x) \ 60 (x) ? DO_NOTHING : ASSERT_FAILED.error(#x, ABORT, "in file %s, line %d", __FILE__, __LINE__) 61 62 #define ASSERT_HOST_MSG(x, ...) \ 63 if (!(x)) { \ 64 tprintf(__VA_ARGS__); \ 65 ASSERT_FAILED.error(#x, ABORT, "in file %s, line %d", __FILE__, __LINE__); \ 66 } 67 68 } // namespace tesseract 69 70 #endif 71