#[unsafe(no_mangle)]pub unsafe extern "C" fn plg_rt_free(ptr: *mut u8, len: u32)Expand description
§Safety
ptr/len must be exactly a prior plg_rt_alloc/plg_rt_run_query pair.
len == 0 no-ops to pair with raw_alloc(0)’s dangling sentinel (which was
never really allocated); the two halves agree by convention, not by API.