
       double stb_GetHoldSlack(StabilityFigure *fig, char *signame, char dir);

DDEESSCCRRIIPPTTIIOONN
       Returns  the  hold  slack  value of a given signal. If there is no hold
       slack value, -1 is returned.

AARRGGUUMMEENNTTSS
       ffiigg           Pointer on a stability figure

       ssiiggnnaammee       Name of the signal to consider

       ddiirr           _u, _d or _?; reports slack value for a given transition

