Numeric#<=>

self <=> other → zero or nil

static VALUE
num_cmp(VALUE x, VALUE y)
{
    if (x == y) return INT2FIX(0);
    return Qnil;
}

Returns zero if self is the same as other, nil otherwise.

No subclass in the Ruby Core or Standard Library uses this implementation.

See also #-@ #abs #+@ #abs2 also in 4.1 · 4.0 · 3.4 · 3.2 · 3.1 · 3.0