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What does the `forall` keyword in Haskell/GHC do?
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123
Can anybody completely explain the forall keyword in clear, plain English?
No. (Well, may...
HTML5 form required attribute. Set custom validation message?
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Mamun
52.8k99 gold badges2828 silver badges4242 bronze badges
answered Nov 25 '13 at 9:52
Somnath KadamSomnath K...
MVC 5 Seed Users and Roles
... ValinValin
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3
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Which timestamp type should I choose in a PostgreSQL database?
...ute a bit more.
Absolute time is used to record an event. Examples: "User 123 logged in" or "a graduation ceremonies start at 2011-05-28 2pm PST." Regardless of your local time zone, if you could teleport to where the event occurred, you could witness the event happening. Most time data in a databa...
Aren't Python strings immutable? Then why does a + “ ” + b work?
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glglgl
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answered Feb 1 '12 at 15:09
chrtanchrtan
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What is a NullPointerException, and how do I fix it?
...c static void main(String[] args) {
Printer printer = new Printer("123");
printer.print();
}
}
See also:
Avoiding “!= null” statements in Java?
I still can't find the problem
If you tried to debug the problem and still don't have a solution, you can post a question for...
maximum value of int
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in C99 you can also use UINT64_MAX and INT64_MAX
– Dmitry Vyal
Oct 2 '13 at 9:08
3
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What is the size of an enum in C?
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99
An enum is only guaranteed to be large enough to hold int values. The compiler is free to choo...
Django : How can I see a list of urlpatterns?
...nswered May 26 '14 at 16:06
pmav99pmav99
1,6981717 silver badges2525 bronze badges
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fastest (low latency) method for Inter Process Communication between Java and C/C++
...post. The results are(RTT in nanos):
Implementation, Min, 50%, 90%, 99%, 99.9%, 99.99%,Max
IPC busy-spin, 89, 127, 168, 3326, 6501, 11555, 25131
UDP busy-spin, 4597, 5224, 5391, 5958, 8466, 10918, 18396
TCP busy-spin, 6244, 6784, 7475, 8697, 11070, 16791, 27265
TCP sele...