// Slow-path append data
private void append2slowUUID() {
if (_ds == null && _ls != null) { // This can happen for columns with all NAs and then a UUID
_xs = null;
alloc_doubles(sparseLen());
Arrays.fill(_ls, C16Chunk._LO_NA);
Arrays.fill(_ds, Double.longBitsToDouble(C16Chunk._HI_NA));
}
if (_ls != null && _ls.length > 0) {
_ls = MemoryManager.arrayCopyOf(_ls, sparseLen() << 1);
_ds = MemoryManager.arrayCopyOf(_ds, sparseLen() << 1);
} else {
alloc_mantissa(4);
alloc_doubles(4);
}
assert sparseLen() == 0 || _ls.length > sparseLen()
: "_ls.length = " + _ls.length + ", _len = " + sparseLen();
}
// Slow-path append data
private void append2slowd() {
assert _ls == null;
if (_ds != null && _ds.length > 0) {
if (_id == null) { // check for sparseness
int nzs = 0; // assume one non-zero for the element currently being stored
for (double d : _ds) if (d != 0) ++nzs;
if ((nzs + 1) * _sparseRatio < _len) set_sparse(nzs);
} else _id = MemoryManager.arrayCopyOf(_id, sparseLen() << 1);
_ds = MemoryManager.arrayCopyOf(_ds, sparseLen() << 1);
} else {
alloc_doubles(4);
if (sparse()) alloc_indices(4);
}
assert sparseLen() == 0 || _ds.length > sparseLen()
: "_ds.length = " + _ds.length + ", _len = " + sparseLen();
}