Help for this page

Select Code to Download

Select or download this

  As of 5.8.1, the "-C" can be followed either by a number or a list
  of option letters.  The letters, their numeric values, and effects
...
              UTF-8, then the selected "IOEioA" are in effect
    a   256   Set ${^UTF8CACHE} to -1, to run the UTF-8 caching code i
+n
              debugging mode.