SRFI 124 (MIT/GNU Scheme 12.1)

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### 18.13 SRFI 124: Ephemerons

Description Support for ephemerons, a weak-pointer mechanism. URL https://srfi.schemers.org/srfi-124/srfi-124.html Support Fully supported. Libraries `(srfi 124)` Global All names are bound in the MIT/GNU Scheme global environment.

`ephemeron-broken?` | `ephemeron-datum` | `ephemeron-key`
`ephemeron?` | `make-ephemeron` | `reference-barrier`