trserror.h

微软的基于HMM的人脸识别原代码, 非常经典的说

/*M*
//               NSL PROPRIETARY INFORMATION
//  This software is supplied under the terms of a license agreement or
//  nondisclosure agreement with NSL and may not be copied
//  or disclosed except in accordance with the terms of that agreement.
//        Copyright (c) 1997 NSL. All Rights Reserved.
//
//  RCS:
//      $Source: trserror.h $
//      $Revision: 1.5 $
//      $Date: 1997/27/01 $
//
//  Author: Smirnov I.E.
//  Purpose: TRS Error Handling Module
//
*M*/

#if !defined (_TRSERROR_H)
# define _TRSERROR_H                    /* Prevent multiply SELF include     */

/*---------------------------------------------------------------------------*/
/*  This section describes the error handling framework.                     */
/*                                                                           */

#define TRS_BASE               -100

#define TRS_StsOk                 0     /* everithing is ok                  */

#define TRS_StsBackTrace   (TRS_BASE-1) /* pseudo error for back trace       */
#define TRS_StsError       (TRS_BASE-2) /* unknown /unspecified error        */
#define TRS_StsInternal    (TRS_BASE-3) /* internal error (bad state)        */
#define TRS_StsNoMem       (TRS_BASE-4) /* out of memory                     */
#define TRS_StsBadArg      (TRS_BASE-5) /* function arg/param is bad         */
#define TRS_StsBadFunc     (TRS_BASE-6) /* unsupported function              */
#define TRS_StsAutoTrace   (TRS_BASE-8) /* Tracing through trstrace.h        */

#define TRS_StsFOpen       (TRS_BASE-10)/* No such file                      */
#define TRS_StsFCreate     (TRS_BASE-11)/* Unable to create file             */
#define TRS_StsNoEntry     (TRS_BASE-12)/* No keyname in section key=        */
#define TRS_StsNoSection   (TRS_BASE-13)/* No section [...] in file          */
#define TRS_StsBadFormat   (TRS_BASE-14)/* Key value has illegal format      */
#define TRS_StsSyntaxError (TRS_BASE-15)/* Syntax error                      */
#define TRS_StsBadMem      (TRS_BASE-16)/* Corrupted memory guards           */

typedef int                 TRSStatus;

TRSREF(TRSStatus)           TstLastStatus;

#define TRS_ErrModeLeaf           0     /* Print error and exit program      */
#define TRS_ErrModeParent         1     /* Print error and continue          */
#define TRS_ErrModeSilent         2     /* Don't print and continue          */

TRSREF(int)                 TstStdErrMode;

/*------ returns function name after the last libError call -----------------*/

TRSAPI(int, newStdError,(int status, const char *funcname, const char *context,
                           const char *file, int line));
TRSAPI(char*, trsErrFuncName,(void));

TRSAPI(TRSStatus, trsError,(TRSStatus status, const char *func,
                   const char *context, const char *file,int line));

/*==== Original Macros : Unconditional - TRS_DEBUG independant ==============*/

#define TRS_FILE __FILE__

#define TRS_ERROR(status,func,context)\
                trsError((status),(func),(context),TRS_FILE,__LINE__)

#define TRS_ERRCHK(func,context)\
                ((TstLastStatus >= 0) ? TRS_StsOk \
                : TRS_ERROR(TRS_StsBackTrace,(func),(context)))

#define TRS_ASSERT(expr,func,context)\
                ((expr) ? TRS_StsOk \
                : TRS_ERROR(TRS_StsInternal,(func),(context)))

#define TRS_RSTERR() (TstLastStatus = TRS_StsOk)

#endif                                  /* _TRSERROR_H                        */