Why not just

    if(EP2->f < 0)
    {
         if(EP1->f > 0.0)
             ISOSRF->tl = 0.5*(EP2->t+EP1->t);
         else
             ISOSRF->tl = EP2->t;
         return true;
    }
    else return false;

???

    Thorsten


PS: You should really consider using a sane tab width with something like
four spaces per tab, and not unreadable eight spaces per tab!

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

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