Stable Numerics Subroutine Library
Programming Reference Manual
Version 1.1 DD-00006-011

6.2.4 Special Assignment

kc_interval<T>& set_empty(); 
kc_interval<T>& set_whole();

These functions assign special states to the current interval k∈ KC  :

set_empty()


Set the interval empty, such that K = ∅  .

set_whole()


Set the interval to span the whole complex space, kr= ∞ .