index [ ]
(I
type
:
integer, i1 I, i2 I)
=>
T
[Abstract feature]
¶Precondition
pre
safety: 0 ≤ i1.as_i64 < length0
safety: 0 ≤ i2.as_i64 < length1
safety: is_accessible
0.097dev (GIT hash 6a5de4939ddf29875c1d9a706508d9bfd0cd7ca9)
last changed: 2026-06-09