Function Highs_releaseMemory 

pub unsafe extern "C" fn Highs_releaseMemory(
    highs: *mut c_void,
) -> HighsInt

Release all retained memory back to the allocator.

Clears all solver state and shrinks internal vectors to free unused capacity. Useful in long-running services that reuse a Highs instance across multiple solves to prevent unbounded RSS growth from heap fragmentation.

@param highs A pointer to the Highs instance.

@returns A kHighsStatus constant indicating whether the call succeeded.