Function vstd::atomic::wrapping_sub_i64

source · 
pub open spec fn wrapping_sub_i64(a: int, b: int) -> int
Expand description
{
    if a - b > (<i64>::MAX as int) {
        a - b - ((<i64>::MAX as int) - (<i64>::MIN as int) + 1)
    } else if a - b < (<i64>::MIN as int) {
        a - b + ((<i64>::MAX as int) - (<i64>::MIN as int) + 1)
    } else {
        a - b
    }
}