const 
10  'Internal error';
20  'Maximum area must be greater than zero.';
30  'You cannot use the -I switch when refining a triangulation.';

40,50,60,70,80,90,100,110,190,280,380,410,450,
460,470,490,500,520,530,550,560,580,590,610,620
640
  'Out of memory.'


120 'Error:  Input points are all identical.'; 
140,160 
 'Error:  Triangles must have at least 3 points.';

150,170,310,320
  'Error:  Cannot access file %s.';

180  'Error:  %s and %s disagree on number of triangles.\n';

200,220
  'Error:  Triangle %d has an invalid vertex index.';
210  'Error:  Triangle %d is missing point %d in %s.';

230,260
  'Error:  Segment %d has no endpoints in %s.';

240,270
  'Error:  Segment %d is missing its second endpoint in %s.'

250 'Error:  Segment %d has an invalid vertex index.\n';

290 'Error:  Ran out of precision';

300 'Error:  Unexpected end of file ';

330,370
    'Error:  Input must have at least three input points.'

340 'Error:  Triangle only works with two-dimensional meshes.'

350 'Error:  Point %d has no x coordinate.\n';

360 'Error:  Point %d has no y coordinate.';

390 'Error:  Hole has no x coordinate.';

400 'Error:  Hole has no y coordinate.'

420 'Error:  Region has no x coordinate.'

430 'Error:  Region has no y coordinate.';

440 'Error:  Region %d has no region attribute or area constraint.'

480,510,540,570,600,630,650,660
    'Error:  Cannot create file %s.'

