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moving committed (but not pushed) changes to a new branch after pull
... Cherry-pick is really the best "copy/move a single commit" command, esp. when history is baggage for your purposes.
– John Neuhaus
May 14 '18 at 15:24
...
Hash collision in git
... no entry for a 40 character hash. But an interpolation of the entries for 32 and 48 characters lands us in the range of 5*1022 git commits for a 0.1% probability of a collision. That is fifty thousand billion billion different commits, or fifty Zettacommits, before you have reached even a 0.1% cha...
Why can't a text column have a default value in MySQL?
...w addition from a MySQL developer at MySQL Bugs:
[17 Mar 2017 15:11] Ståle Deraas
Posted by developer:
This is indeed a valid feature request, and at first glance it might seem trivial to add. But TEXT/BLOBS values are not stored directly in the record buffer used for reading/updating...
How to send an object from one Android Activity to another using Intents?
...
Not necessarily a bad idea, esp. since Gson is much simpler to use than to implement parcelable for all the objects you want to send.
– uvesten
Apr 13 '11 at 15:26
...
What is the fastest integer division supporting division by zero no matter what the result is?
...ype f, @function
f:
pushl %ebp
xorl %eax, %eax
movl %esp, %ebp
movl 12(%ebp), %edx
testl %edx, %edx
sete %al
addl %edx, %eax
movl 8(%ebp), %edx
movl %eax, %ecx
popl %ebp
movl %edx, %eax
sarl $31, %edx
idivl %ec...
In log4j, does checking isDebugEnabled before logging improve performance?
...g(someString);
But usually, as the application grows, changes many hands, esp novice developers, you could see
logger.debug(str1 + str2 + str3 + str4);
and the like.
Even if log level is set to ERROR or FATAL, the concatenation of strings do happen !
If the application contains lots of DEBUG lev...
Why does sun.misc.Unsafe exist, and how can it be used in the real world?
...traction levels and numerous of checks. Failing the CAS is a bad in a loop esp. when the hardware decides to mispredict the branch (due to high contention) but having few more compare/branches just hurts. Park/Unpark are exposed through LockSupport not AQS (that latter is more of a lock impl. than ...
Django rest framework, use different serializers in the same ModelViewSet
...ly different than the corresponding http methods.
– Håken Lid
Apr 21 '18 at 10:48
add a comm...
Is there a practical use for weak references? [duplicate]
...e quick&dirty caches via soft references but they are just unreliable, esp. w/o control over the GC and caches shall not be a driving force how to configure the GC.
– bestsss
Jan 16 '12 at 2:48
...
What is the difference between a weak reference and an unowned reference?
...ned above. Check "Resolving Strong Reference Cycles for Closures" section, esp. Quote: " Swift requires you to write self.someProperty or self.someMethod() (rather than just someProperty or someMethod()) whenever you refer to a member of self within a closure. This helps you remember that it’s pos...