EVP_MD_CTX_free documentation

[Ken Goldman]

Thanks.  It would be good to document it (and that all the _new's
return NULL on an error).

On 7/30/2021 3:03 PM, Matt Caswell wrote:
> All our _free functions will accept NULL. We rely on this extensively *everywhere*. We perhaps could be better at documenting it, but you can rely on it.
> 
> Matt
> 
> On 30/07/2021 17:55, Ken Goldman wrote:
>> It would be nice if the documentation would guarantee that
>> this function is a no-op when the parameter is NULL - like
>> the standard free() call.
>>
>> This would save coding (if not NULL) all the time.
>>
>> Same comment for all the _free functions.
>>
>> I know I can look at the code, but that doesn't
>> provide an API guarantee.
>>
>