Fuzion Logo
fuzion-lang.dev — The Fuzion Language Portal
JavaScript seems to be disabled. Functionality is limited.

compare_and_swap

concur.atomic.compare_and_swap

(expected T, new_value T)
 => 
T
Perform a bit-wise comparison of the value contained in this atomic and
`expected`. In case both values are equal, replace this value with `new_value`.

returns the old value, independent of whether the old value is bit-wise
equal to `expected` or not.
0.095dev (2025-09-09 14:29:31 GIT hash 98644f8f651c2101a0730cfe31c5807993b7603b built by fridi@fzen)