Argox PT-10, Руководство по программированию

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error, delete_topln returns an integer value of -1 and an error code
is set to the global variable fErrorCode to indicate the error
condition encountered. Possible error codes and their
interpretation are listed below.
fErrorCode
：
2:File specified by fd does not exist.
8:File not opened
9:The value of count is negative.
10:No more free file space for file extension.
eof
Purpose
：
Check if file pointer of a DAT file reaches end of file.
Syntax
：
int eof(int fd);
Example call
：
if (eof(fd)) _puts(“end of file reached!\n”);
Includes
：
#include “LIB_CL.h ”
Description
：
The eof function checks if the file pointer of the DAT file whose
file handle is specified in the argument fd, points to end-of-file.
Returns
：
The eof function returns an integer value of 1 to indicate an
end-of-file and a 0 when not. In case of error, eof returns an
integer value of -1 and an error code is set to the global variable
fErrorCode to indicate the error condition encountered.
fErrorCode
：
2:File specified by DBF_fd does not exist.
8:File not opened
filelength
Purpose
：
Get file length information of a DAT file.
Syntax
：
long filelength(int fd);
Example call
：
datasize = filelength(fd);
Includes
：
#include “LIB_CL.h ”
Description
：
The filelength function returns the size in number of bytes of the
DAT file whose file handle is specified in the argument fd.
Returns
：
The long integer value returned by filelength is the size of the
DAT file in number of bytes. In case of error, filelength returns a
long value of -1 and an error code is set to the global variable
fErrorCode to indicate the error condition encountered. Possible
error codes and their interpretation
.
fErrorCode
：
2:File specified by fd does not exist.
8:File not opened
filelist
Purpose
：
Get file directory information.
Syntax
：
int filelist(char * file_list);