small point of detail

[B. Scott Michel]

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_entry is a pointer to a pointer to a SRP_PWD_ENTRY. calloc() and
friends return a void pointer, which means that the code has to
dereference _entry in order to assign it the value from calloc().
calloc() allocates a 1 element sized array, where each element is the
size of a SRP_PWD_ENTRY. And, the resulting memory is filled with zeroes.

The "entry = *_entry" statement just makes entry point to the same thing
as *_entry, which is the memory just allocated by calloc().

entry is just used a shorthand for (*_entry) in the subsequent code.
Otherwise, you'd have to write (*_entry)-> to manipulate the
SRP_PWD_ENTRY structure.

Hope this helps you understand the code better.


- -scooter


On 8/30/2012 3:29 PM, ml wrote:
> this feature is a point of detail to the file
> auth_srp_passwd.c
> line 266
> gnutls 2 last release
>
>
> Le vendredi 31 août 2012 à 00:24 +0200, ml a écrit :
>> hello all gurus
>> I just go a small part of the code and I wonder one thing that is a
>> small point of detail
>>
>> *_entry = gnutls_calloc (1, sizeof (SRP_PWD_ENTRY));
>> if (*_entry == NULL)
>> {
>> gnutls_assert ();
>> return GNUTLS_E_MEMORY_ERROR;
>> }
>> entry = *_entry;
>>
>> i do not understand this line
>> *_entry is allocated of the same size ?
>>
>> please answer me
>> _______________________________________________
>> Gnutls-devel mailing list
>> Gnutls-devel at gnu.org
>> https://lists.gnu.org/mailman/listinfo/gnutls-devel
>
>
>
> _______________________________________________
> Gnutls-devel mailing list
> Gnutls-devel at gnu.org
> https://lists.gnu.org/mailman/listinfo/gnutls-devel

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