EST_File.h

/************************************************************************/
/*                                                                      */
/*                Centre for Speech Technology Research                 */
/*                     University of Edinburgh, UK                      */
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/************************************************************************/
/*                 Author: Sergio Oller                                 */
/*                   Date: March 2014                                   */
/************************************************************************/
/*                                                                      */
/* Portable file I/O functions supporting large files                   */
/*                                                                      */
/* In order to provide large file support, we need to use an 8 byte     */
/* integer type at least. On POSIX systems this is usually done by      */
/* using off_t type to store ftell function return values and by        */
/* compiling with -D_FILE_OFFSET_BITS=64.                               */
/*                                                                      */
/* On MSVS2012 we can use __int64, _fseeki64, _ftelli64                 */
/*                                                                      */
/* For now and until a safe, common, standard and portable solution is  */
/* known, this file will be our portability layer among systems         */
/* I just hope this file to become useless some day                     */
/************************************************************************/


#ifndef EST_File_H_
#define EST_File_H_

#if defined(_WIN32) /* Win32 or Win64 */

typedef __int64 EST_FilePos;

inline EST_FilePos EST_ftell(FILE *fp) {
  return _ftelli64(fp);
}

inline int EST_fseek(FILE *fp, EST_FilePos offset, int whence) {
  return _fseeki64(fp, offset, whence);
}

#else

typedef off_t EST_FilePos;

inline EST_FilePos EST_ftell(FILE *fp) {
  return ftell(fp);
}

inline int EST_fseek(FILE *fp, EST_FilePos offset, int whence) {
  return fseek(fp, offset, whence);
}

#endif
#endif /* header guard */