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index [ ] := 

io.file.mapped_buffer.index [ ] := 

(I 
type
:
integer, i I, o u8)
 => 
unit
set byte at given index i to given value o
Precondition
Inherited from container.Buffer.index [ ] := 
pre
  safety: 0 ≤ i.as_i64 < length

Type Parameters

0.095dev (GIT hash 91033acfd0b07a6e4c620ce81166841b8de33a6f)
last changed: 2026-04-29