in cpp/src/arrow/util/bpacking.cc [182:387]
int unpack64_default(const uint8_t* in, uint64_t* out, int batch_size, int num_bits) {
batch_size = batch_size / 32 * 32;
int num_loops = batch_size / 32;
switch (num_bits) {
case 0:
for (int i = 0; i < num_loops; ++i) in = unpack0_64(in, out + i * 32);
break;
case 1:
for (int i = 0; i < num_loops; ++i) in = unpack1_64(in, out + i * 32);
break;
case 2:
for (int i = 0; i < num_loops; ++i) in = unpack2_64(in, out + i * 32);
break;
case 3:
for (int i = 0; i < num_loops; ++i) in = unpack3_64(in, out + i * 32);
break;
case 4:
for (int i = 0; i < num_loops; ++i) in = unpack4_64(in, out + i * 32);
break;
case 5:
for (int i = 0; i < num_loops; ++i) in = unpack5_64(in, out + i * 32);
break;
case 6:
for (int i = 0; i < num_loops; ++i) in = unpack6_64(in, out + i * 32);
break;
case 7:
for (int i = 0; i < num_loops; ++i) in = unpack7_64(in, out + i * 32);
break;
case 8:
for (int i = 0; i < num_loops; ++i) in = unpack8_64(in, out + i * 32);
break;
case 9:
for (int i = 0; i < num_loops; ++i) in = unpack9_64(in, out + i * 32);
break;
case 10:
for (int i = 0; i < num_loops; ++i) in = unpack10_64(in, out + i * 32);
break;
case 11:
for (int i = 0; i < num_loops; ++i) in = unpack11_64(in, out + i * 32);
break;
case 12:
for (int i = 0; i < num_loops; ++i) in = unpack12_64(in, out + i * 32);
break;
case 13:
for (int i = 0; i < num_loops; ++i) in = unpack13_64(in, out + i * 32);
break;
case 14:
for (int i = 0; i < num_loops; ++i) in = unpack14_64(in, out + i * 32);
break;
case 15:
for (int i = 0; i < num_loops; ++i) in = unpack15_64(in, out + i * 32);
break;
case 16:
for (int i = 0; i < num_loops; ++i) in = unpack16_64(in, out + i * 32);
break;
case 17:
for (int i = 0; i < num_loops; ++i) in = unpack17_64(in, out + i * 32);
break;
case 18:
for (int i = 0; i < num_loops; ++i) in = unpack18_64(in, out + i * 32);
break;
case 19:
for (int i = 0; i < num_loops; ++i) in = unpack19_64(in, out + i * 32);
break;
case 20:
for (int i = 0; i < num_loops; ++i) in = unpack20_64(in, out + i * 32);
break;
case 21:
for (int i = 0; i < num_loops; ++i) in = unpack21_64(in, out + i * 32);
break;
case 22:
for (int i = 0; i < num_loops; ++i) in = unpack22_64(in, out + i * 32);
break;
case 23:
for (int i = 0; i < num_loops; ++i) in = unpack23_64(in, out + i * 32);
break;
case 24:
for (int i = 0; i < num_loops; ++i) in = unpack24_64(in, out + i * 32);
break;
case 25:
for (int i = 0; i < num_loops; ++i) in = unpack25_64(in, out + i * 32);
break;
case 26:
for (int i = 0; i < num_loops; ++i) in = unpack26_64(in, out + i * 32);
break;
case 27:
for (int i = 0; i < num_loops; ++i) in = unpack27_64(in, out + i * 32);
break;
case 28:
for (int i = 0; i < num_loops; ++i) in = unpack28_64(in, out + i * 32);
break;
case 29:
for (int i = 0; i < num_loops; ++i) in = unpack29_64(in, out + i * 32);
break;
case 30:
for (int i = 0; i < num_loops; ++i) in = unpack30_64(in, out + i * 32);
break;
case 31:
for (int i = 0; i < num_loops; ++i) in = unpack31_64(in, out + i * 32);
break;
case 32:
for (int i = 0; i < num_loops; ++i) in = unpack32_64(in, out + i * 32);
break;
case 33:
for (int i = 0; i < num_loops; ++i) in = unpack33_64(in, out + i * 32);
break;
case 34:
for (int i = 0; i < num_loops; ++i) in = unpack34_64(in, out + i * 32);
break;
case 35:
for (int i = 0; i < num_loops; ++i) in = unpack35_64(in, out + i * 32);
break;
case 36:
for (int i = 0; i < num_loops; ++i) in = unpack36_64(in, out + i * 32);
break;
case 37:
for (int i = 0; i < num_loops; ++i) in = unpack37_64(in, out + i * 32);
break;
case 38:
for (int i = 0; i < num_loops; ++i) in = unpack38_64(in, out + i * 32);
break;
case 39:
for (int i = 0; i < num_loops; ++i) in = unpack39_64(in, out + i * 32);
break;
case 40:
for (int i = 0; i < num_loops; ++i) in = unpack40_64(in, out + i * 32);
break;
case 41:
for (int i = 0; i < num_loops; ++i) in = unpack41_64(in, out + i * 32);
break;
case 42:
for (int i = 0; i < num_loops; ++i) in = unpack42_64(in, out + i * 32);
break;
case 43:
for (int i = 0; i < num_loops; ++i) in = unpack43_64(in, out + i * 32);
break;
case 44:
for (int i = 0; i < num_loops; ++i) in = unpack44_64(in, out + i * 32);
break;
case 45:
for (int i = 0; i < num_loops; ++i) in = unpack45_64(in, out + i * 32);
break;
case 46:
for (int i = 0; i < num_loops; ++i) in = unpack46_64(in, out + i * 32);
break;
case 47:
for (int i = 0; i < num_loops; ++i) in = unpack47_64(in, out + i * 32);
break;
case 48:
for (int i = 0; i < num_loops; ++i) in = unpack48_64(in, out + i * 32);
break;
case 49:
for (int i = 0; i < num_loops; ++i) in = unpack49_64(in, out + i * 32);
break;
case 50:
for (int i = 0; i < num_loops; ++i) in = unpack50_64(in, out + i * 32);
break;
case 51:
for (int i = 0; i < num_loops; ++i) in = unpack51_64(in, out + i * 32);
break;
case 52:
for (int i = 0; i < num_loops; ++i) in = unpack52_64(in, out + i * 32);
break;
case 53:
for (int i = 0; i < num_loops; ++i) in = unpack53_64(in, out + i * 32);
break;
case 54:
for (int i = 0; i < num_loops; ++i) in = unpack54_64(in, out + i * 32);
break;
case 55:
for (int i = 0; i < num_loops; ++i) in = unpack55_64(in, out + i * 32);
break;
case 56:
for (int i = 0; i < num_loops; ++i) in = unpack56_64(in, out + i * 32);
break;
case 57:
for (int i = 0; i < num_loops; ++i) in = unpack57_64(in, out + i * 32);
break;
case 58:
for (int i = 0; i < num_loops; ++i) in = unpack58_64(in, out + i * 32);
break;
case 59:
for (int i = 0; i < num_loops; ++i) in = unpack59_64(in, out + i * 32);
break;
case 60:
for (int i = 0; i < num_loops; ++i) in = unpack60_64(in, out + i * 32);
break;
case 61:
for (int i = 0; i < num_loops; ++i) in = unpack61_64(in, out + i * 32);
break;
case 62:
for (int i = 0; i < num_loops; ++i) in = unpack62_64(in, out + i * 32);
break;
case 63:
for (int i = 0; i < num_loops; ++i) in = unpack63_64(in, out + i * 32);
break;
case 64:
for (int i = 0; i < num_loops; ++i) in = unpack64_64(in, out + i * 32);
break;
default:
DCHECK(false) << "Unsupported num_bits";
}
return batch_size;
}