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What is an optional value in Swift?
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best and clearest explanation for ? and ! use in Swift I found on the web. thank you
– mindbomb
Nov 17 '14 at 12:15
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Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_
... Interesting, can you add compiler version and compiler flags? The best thing is that on your machine, the results are turned around, i.e., using u64 is faster. Until now, I have never thought about which type my loop variable has, but it seems I have to think twice next time :).
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Accessing class variables from a list comprehension in the class definition
... to put a big fat comment in there explaining why you are doing this.
The best work-around is to just use __init__ to create an instance variable instead:
def __init__(self):
self.y = [self.x for i in range(1)]
and avoid all the head-scratching, and questions to explain yourself. For your ow...
What are the calling conventions for UNIX & Linux system calls (and user-space functions) on i386 an
... in the registers when calling or being called by other program. And the best source of these convention is in the form of ABI standards defined for each these hardware. For ease of compilation, the same ABI is also used by userspace and kernel program. Linux/Freebsd follow the same ABI for x8...
Managing relationships in Laravel, adhering to the repository pattern
...r dealing with data.
I think you were asking if a repository would be the best way to deal with some of the more verbose syntax required to connect related models. Depending on the situation, there are a few things I may do:
Hanging a new child model off of a parent model (one-one or one-many), I...
Extracting bits with a single multiplication
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This really is the best answer, but it wouldn't have been so helpful without reading (the first half) of @floris's answer first.
– Andrew Backer
Jan 28 '13 at 16:12
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How to generate a random string of a fixed length in Go?
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@icza, that is one of the best answers I saw for a long time on SO!
– astropanic
Aug 30 '15 at 12:12
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How to parse freeform street/postal address out of text, and into components
... (except for temporary caching). Makes sense. Google's data is some of the best in the world. However, Google Maps does not verify the address. If an address does not exist, it will still show you where the address would be if it did exist (try it on your own street; use a house number that you know...
Context switches much slower in new linux kernels
...y, but "expecting" anything from BIOS is going to bite you repeatedly. The best thing firmware can do in a modern PC is nothing. I'm sorry you were surprised, but frankly this is user error. Your benchmark was measuring suspend and resume times.
– Andy Ross
Aug...
How can we match a^n b^n with Java regex?
...t there's a regex pattern that will match anbn, this is in not always the "best" solution in practice. A much better solution is to simply match ^(a+)(b+)$, and then compare the length of the strings captured by groups 1 and 2 in the hosting programming language.
In PHP, it may look something like t...