.TH LABCONST 3 .SH NAME labelyes, labelno, labeltop, labelbot \- label constants .SH SYNOPSIS .B extern struct label labelyes; .PP .B extern struct label labelno; .PP .B extern struct label labeltop; .PP .B extern struct label labelbot; .SH DESCRIPTION These objects are initialized as follows, where the coded values are as in .IR labtoa (3). .TF labeltop .TP .B labelyes The universally permissive label, .LR Y . .TP .B labelno The universally denying label, .LR N . .TP .B labeltop The top lattice value, .LR ffff... . .TP .B labelbot The bottom lattice value, .LR 0000... .