_FEOF( ) API Library Routine Example
The following example creates a file and sets its length to 8192 bytes. Then it moves the file pointer to the beginning of the file and calls _FEOF( ), which returns 0 (False). Next, it moves the file pointer to the end of the file and again calls _FEOF( ), which this time returns 1 (True).
SET LIBRARY TO FEOF
#include <pro_ext.h>
void putLong(long n)
{
Value val;
val.ev_type = 'I';
val.ev_long = n;
val.ev_width = 10;
PutValue(&val);
}
FAR Example(ParamBlk FAR *parm)
{
FCHAN fchan = FCreate("temp.txt", FC NORMAL);
FCHSize(fchan, 8196);
FFlush(fchan);
FSeek(fchan, 0, FS FROMBOF);
PutStr("\n FSeek(fchan, 0, FS FROMBOF)");
PutStr("\n FEOF(fchan) ="); putLong(_FEOF(fchan));
_FSeek(fchan, 0, FS_FROMEOF);
_PutStr("\n_FSeek(fchan, 0, FS_FROMEOF)");
_PutStr("\n_FEOF(fchan) ="); putLong(_FEOF(fchan));
}
FoxInfo myFoxInfo[] = {
{"FEOF", (FPFI) Example, CALLONLOAD, ""},
};
FoxTable _FoxTable = {
(FoxTable FAR *) 0, sizeof(myFoxInfo)/sizeof(FoxInfo), myFoxInfo
};