public static Obj FileAppend_P(Obj fname, Obj data, object env)
{
try {
IO.AppendAllBytes(fname.GetString(), data.GetByteArray());
return(SymbObj.Get(SymbObj.TrueSymbId));
}
catch (Exception) {
return(SymbObj.Get(SymbObj.FalseSymbId));
}
}