On Sat, 22 Apr 2023, Tom Lane wrote:
>Wen Yi <chuxuec@outlook.com> writes:
>> [ use calloc to replace zeroing fields individually ]
[…]
>People have complained about this practice off-and-on, but no one has
>provided any evidence that there's a significant performance cost.
>The maintenance benefits are real though.
Oh, interesting ;-) Thanks for this explanation.
Another data point is: calloc is not correct for pointer fields,
you have to manually assign NULL to them afterwards still, because
NULL doesn’t have to be represented by all-zero bytes (e.g. TenDRA
supports having 0x55555555 as NULL pointer as an option).
bye,
//mirabilos
--
15:41⎜<Lo-lan-do:#fusionforge> Somebody write a testsuite for helloworld :-)