test/XPath/expr/functions

   1 true()
   2 false()
   3 number("1.5")
   4 number('abc')
   5 -number('abc')
   6 floor(0.1)
   7 floor(-0.1)
   8 floor(-0)
   9 floor(0)
  10 floor(5.2)
  11 floor(-5.2)
  12 ceiling(0.1)
  13 ceiling(-0.1)
  14 ceiling(-0)
  15 ceiling(0)
  16 ceiling(5.2)
  17 ceiling(-5.2)
  18 round(0.1)
  19 round(5.2)
  20 round(5.5)
  21 round(5.6)
  22 round(-0.1)
  23 round(-5.2)
  24 round(-5.5)
  25 round(-5.6)