Commits on Sep 20, 2023

1. [libc] Fix Off By One Errors In Printf Long Double …

   Two major off-by-one errors are fixed in this patch. The first is in
   float_to_string.h with length_for_num, which wasn't accounting for the
   implicit leading bit when calculating the length of a number, causing
   a missing digit on 80 bit float max. The other off-by-one is the
   ryu_long_double_constants.h (a.k.a the Mega Table) not having any
   entries for the last POW10_OFFSET in POW10_SPLIT. This was also found on
   80 bit float max. Finally, the integer calculation mode was using a
   slightly too short integer, again on 80 bit float max, not accounting
   for the mantissa width. All of these are fixed in this patch.

   

   michaelrj-google committed Sep 20, 2023
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