[−][src]Function grin_core::core::pmmr::peak_map_height
pub fn peak_map_height(pos: u64) -> (u64, u64)
return (peak_map, pos_height) of given 0-based node pos prior to its
addition
Example: on input 4 returns (0b11, 0) as mmr state before adding 4 was
2
/
0 1 3
with 0b11 indicating presence of peaks of height 0 and 1.
NOTE:
the peak map also encodes the path taken from the root to the added node
since the path turns left (resp. right) if-and-only-if
a peak at that height is absent (resp. present)