[Python-Dev] Odd lines in unicodedata_db.h

[MRAB]

Amaury Forgeot d'Arc wrote:
> 2010/4/4 MRAB <python at mrabarnett.plus.com>:
>> I've just downloaded the daily snapshot at
>> http://svn.python.org/snapshots/python.tar.bz2
>>
>> In the header file /python/Modules/unicodedata_db.h, there are the
>> following lines in the change_records_3_2_0 struct:
>>
>>        { 255, 255, 255, 255, 1.0 },
>>        { 255, 255, 255, 255, 2.0 },
>>        { 255, 255, 255, 255, 3.0 },
>>        { 255, 255, 255, 255, 4.0 },
>>        ...
>>        { 255, 255, 255, 255, 1e+16 },
>>        { 255, 255, 255, 255, 1e+20 },
>>
>> Looks like a bug to me.
> 
> I don't think so. Unicode 3.2 did contain two entries with large numeric values.
> The file Unihan-3.2.0.txt contains these two lines:
> 
> U+4EAC	kPrimaryNumeric	10,000,000,000,000,000 ten quadrillion (American)
> U+5793	kPrimaryNumeric	100,000,000,000,000,000,000 hundred quintillion
> (American)
> 
> For some reason newer versions of the unicode standard removed these values.
> 
It causes a type warning:

warning C4244: 'initializing' : conversion from 'double' to 'const int', 
possible loss of data