packBPRL

/* import backtrace.backtrace; */
/* import std.stdio: stderr; */
/* backtrace.backtrace.install(stderr); */
immutable x = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
immutable xPacked = x.packBitParallelRunLengths;
version (show) dbg(xPacked);