// check whether compressed file can be
// decompressd to original one
bool check(string fn, string cfn, int bs, int cbs)
{
var obits = read_bits(fn);
var cbits = read_bits(cfn);
var cbits_list = cbits.ToList();
var cbits_queue = new Queue <int>(cbits_list);
var dar = new Ar(cbits_queue);
// reset models
for (var i = 0; i < N; i++)
{
m[i] = new Model(i);
}
for (var i = 0; i < bs; i++)
{
var n = predict();
var bit = dar.decode(n[0], n[1]);
if (bit != obits[i])
{
WriteLine($"decompression error at {i}-th bit");
WriteLine($"{obits[i]} was expected instead of {bit}");
return(false);
}
update(bit);
}
return(true);
}
