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Diff for /src/usr.bin/awk/FIXES between version 1.39 and 1.40

version 1.39, 2020/12/09 20:00:11 version 1.40, 2020/12/18 21:36:24
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 This file lists all bug fixes, changes, etc., made since the AWK book  This file lists all bug fixes, changes, etc., made since the AWK book
 was sent to the printers in August, 1987.  was sent to the printers in August, 1987.
   
   December 18, 2020:
           Fix problems converting inf and NaN values in lib.c:is_valid_number.
           Enhance number to string conversion to do the right thing for
           NaN and inf values.  Things are now pretty much the same as in
           gawk.  (Found a gawk bug while we're at it.) Added a torture
           test for these values.  Thanks to Arnold Robbins.  Allows closing
           of PR #101.
   
   December 15, 2020:
           Merge PR #99, which gets the right header for strcasecmp.
           Thanks to GitHub user michaelforney.
   
 December 8, 2020:  December 8, 2020:
         Merge PR #98: Disallow hex data. Allow only +nan, -nan,          Merge PR #98: Disallow hex data. Allow only +nan, -nan,
         +inf, -inf (case independent) to give NaN and infinity values.          +inf, -inf (case independent) to give NaN and infinity values.
Legend:
Removed from v.1.39  
changed lines
  Added in v.1.40