RETURN VALUES
If successful, calloc(), malloc(), realloc(), reallocf(), and valloc()
functions return
a pointer to allocated memory. If there is an error, they return a NULL
pointer and set
errno to ENOMEM.
>> An implementation of malloc that never returns NULL is still compliant to
>> the standard.
Have you tried checking errno after the malloc?
-Carl
> On Jul 4, 2016, at 7:13 PM, Dmitry Markman <[email protected]> wrote:
>
> thanks
>
> unfortunately you started to play with words
>
> I asked for ~250TB of data from my MacBook Pro with 1TB SSD and 16GB of RAM
>
> clearly that amount can’t be given (in any circumstances)
>
> so if compiler returns something that isn’t NULL it’s very troubling
>
> thanks again
>
> dm
>
>
>
>> On Jul 4, 2016, at 9:20 PM, Clark Cox <[email protected]> wrote:
>>
>>
>>> On Jul 4, 2016, at 15:53, Dmitry Markman <[email protected]> wrote:
>>>
>>> Hmm
>>>
>>> behavior you described is good receipt to un-robust software
>>>
>>> IMHO, all talks about “effective", “typically" and so on and on is matter
>>> of interpretation
>>>
>>> and are much less important than standard
>>
>> An implementation of malloc that never returns NULL is still compliant to
>> the standard.
>>
>>> first of all there is a standard and nothing more. In some cases standard
>>> says that behavior is undefined
>>>
>>> but in case of “malloc" and "operator new” everything is well defined
>>
>> The standard says that malloc returns NULL in case of failure. It however,
>> says nothing about what constitutes a failure, or *any* situations in which
>> NULL must be returned..
>>
>>
>>
>> --
>> Clark Smith Cox III
>> [email protected]
>>
>
> Dmitry Markman
>
>
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