nimbus-eth2/tests/helpers/math_helpers.nim

15 lines
734 B
Nim

# beacon_chain
# Copyright (c) 2018-2019 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
func round_multiple_down*(x: uint64, n: uint64): uint64 {.inline.} =
## Round the input to the previous multiple of "n"
result = x - x mod n
func round_multiple_up*(x: uint64, n: uint64): uint64 {.inline.} =
## Round the input to the next multiple of "n"
result = ((x + n - 1) div n) * n