• flat_segment_tree
  • fixed a bug that caused an assertion error when inserting a out-of-bound segment whose start value equals the max key value.
• multi_type_vector
  • changed the primary block array storage to remove additional indirection, for improved memory locality.

Signed-off-by: Pierre-Yves <pyu@riseup.net>

add: self checks.
No further tests done, but the API version remains unchanged (1.2)