explain_lseek_or_die(3) [debian man page]

explain_lseek_or_die(3) 				     Library Functions Manual					   explain_lseek_or_die(3)

NAME

       explain_lseek_or_die - reposition file offset and report errors

SYNOPSIS

       #include <libexplain/lseek.h>
       long long explain_lseek_or_die(int fildes, long long offset, int whence);

DESCRIPTION

       The  explain_lseek_or_die function is used to call the lseek(2) system call.  On failure an explanation will be printed to stderr, obtained
       from explain_lseek(3), and then the process terminates by calling exit(EXIT_FAILURE).

       This function is intended to be used in a fashion similar to the following example:
	      long long result = explain_lseek_or_die(fildes, offset, whence);

       fildes  The fildes, exactly as to be passed to the lseek(2) system call.

       offset  The offset, exactly as to be passed to the lseek(2) system call.

       whence  The whence, exactly as to be passed to the lseek(2) system call.

       Returns:
	       On successful, returns the resulting offset location as measured in bytes from the beginning of the file.  On  failure,	prints	an
	       explanation and exits.

SEE ALSO

       lseek(2)
	       reposition file offset

       explain_lseek(3)
	       explain lseek(2) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 0.52
       Copyright (C) 2008 Peter Miller

															   explain_lseek_or_die(3)

explain_fseek_or_die(3) 				     Library Functions Manual					   explain_fseek_or_die(3)

NAME

       explain_fseek_or_die - reposition a stream and report errors

SYNOPSIS

       #include <libexplain/fseek.h>
       void explain_fseek_or_die(FILE *fp, long offset, int whence);
       int explain_fseek_on_error(FILE *fp, long offset, int whence);

DESCRIPTION

       The  explain_fseek_or_die  function is used to call the fseek(3) system call. On failure an explanation will be printed to stderr, obtained
       from the explain_fseek(3) function, and then the process terminates by calling exit(EXIT_FAILURE).

       The explain_fseek_on_error function is used to call the fseek(3) system call. On failure an explanation will be printed to stderr, obtained
       from the explain_fseek(3) function, but still returns to the caller.

       fp      The fp, exactly as to be passed to the fseek(3) system call.

       offset  The offset, exactly as to be passed to the fseek(3) system call.

       whence  The whence, exactly as to be passed to the fseek(3) system call.

RETURN VALUE

       The  explain_fseek_or_die function only returns on success, see fseek(3) for more information. On failure, prints an explanation and exits,
       it does not return.

       The explain_fseek_on_error function always returns the value return by the wrapped fseek(3) system call.

EXAMPLE

       The explain_fseek_or_die function is intended to be used in a fashion similar to the following example:
	      explain_fseek_or_die(fp, offset, whence);

SEE ALSO

       fseek(3)
	       reposition a stream

       explain_fseek(3)
	       explain fseek(3) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 0.52
       Copyright (C) 2010 Peter Miller

															   explain_fseek_or_die(3)