Andrei Alexandrescu wrote:
> Andrei Alexandrescu wrote:
>> Saaa wrote:
>>> Could anybody clear these up for me?
>>>
>>>> p16. Is there anything other than the random values, unsafe about void
>>>> assignment?
>>
>> I'd put your feedback on my pile of things to do, but now that you ask, I
>> made this change to the incriminated paragraph:
>>
>> ===========
>> Such uninitialized arrays are particularly useful for large arrays
>> that serve as temporary buffers. An uninitialized integral may not
>> cause too much harm, but uninitialized values of types with
>> indirections (such as arrays themselves) are unsafe.
>> ===========
>>
>>>> p18. What is unsafe about implicit conversion of static to dynamic
>>>> array?
>>>> Meaning getting a dynamic array pointing to a stack allocated
>>>> array.
>>>> Any operation changing its size could copy the array to the
>>>> heap. What am I missing
>>
>> T[] fun() { T[10] a; return a; }
>> ...
>> auto x = fun(); // gained access to recycled stack memory
>>
>> There's no change in size there.
>>
>>>> p20. 10 int take up 40 words?
>>
>> The example given has a per-row payload of 10 ints, i.e. 40 words.
>
> It's bytes actually. So finally I rewrote those last words as:
>
> "... small per-row payload of~10 @i...@s (40 bytes)."
>
>
> Andrei
Thanks !
Out of interest, do you keep a list of common error or something alike that
helps you keep errors at a minimum?
Also, do you have automated example checking?
Or, more general, I would be interested in a small article explaining how a
book like this is written.
Maybe After the book is finished :)
