Hi Rob:

Thank you for your patience. I updated  Elliott's fix and solved my problems.

ths.

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thanks with best regards!

email:[email protected];[email protected]

phone:15850502564

 




At 2018-08-05 22:21:47, "Rob Landley" <[email protected]> wrote:
>On 08/05/2018 01:41 AM, xiewen wrote:
>> Hi Rob:
>>   
>>    Thank you and Elliott's help.
>> i have a doubt:
>> why is it removed if(options) ?
>
>Because free(NULL) is defined as a NOP in posix and C99, so there's no need to 
>test:
>
>http://pubs.opengroup.org/onlinepubs/9699919799/functions/free.html
>
>Rob
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