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How to run a program without an operating system?
...M calls theirs semihosting for example. On real hardware, it requires some extra hardware and software support, but on emulators it can be a free convenient option. Example.
Here we will do a BIOS example as it is simpler on x86. But note that it is not the most robust method.
main.S
.code16
m...
Table with fixed header and fixed column on pure css
.../javascript" charset="utf-8" src="http://datatables.net/release-datatables/extras/FixedColumns/media/js/FixedColumns.js"></script>
i don't see any other way of achieving this. Especially not by using css only.
This is a lot to go through. Hope this helps :)
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How does PHP 'foreach' actually work?
...hat, in all cases but 3, the array is modified during the loop, while this extra reference is alive. This triggers a clone, and that explains what's going on here!
Here is an excellent article for another side effect of this copy-on-write behaviour: The PHP Ternary Operator: Fast or not?
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Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
...eversed bits of v; first get LSB of v
int s = sizeof(v) * CHAR_BIT - 1; // extra shift needed at end
for (v >>= 1; v; v >>= 1)
{
r <<= 1;
r |= v & 1;
s--;
}
r <<= s; // shift when v's highest bits are zero
Faster (32-bit processor)
unsigned char b = x;
b = ((...
What exactly does git's “rebase --preserve-merges” do (and why?)
...e has to define what it means to replay a merge commit, and deal with some extra wrinkles
The most interesting part, conceptually, is perhaps in picking what the new commit's merge parents should be.
Replaying merge commits also require explicitly checking out particular commits (git checkout <...
What is the purpose of Flask's context stacks?
...fference in philosophy. Not a TDD practitioner either, which a lot of this extra machinery seems to be intended to support.
– QuadrupleA
Aug 15 '16 at 22:07
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Which would be better for concurrent tasks on node.js? Fibers? Web-workers? or Threads?
...tnote. However this is no way like 1000 threads doing similar works. Those extra threads are for things like to accept IO events and to handle inter-process messaging.
UPDATE (As reply to a good question in comments)
@Mark, thank you for the constructive criticism. In Node's paradigm, you should n...
Why would you use String.Equals over ==? [duplicate]
I recently was introduced to a large codebase and noticed all string comparisons are done using String.Equals() instead of ==
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When should we use intern method of String on String literals
According to String#intern() , intern method is supposed to return the String from the String pool if the String is found in String pool, otherwise a new string object will be added in String pool and the reference of this String is returned.
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What is the difference between “text” and new String(“text”)?
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new String("text");
explicitly creates a new and referentially distinct instance of a String object; String s = "text"; may reuse an instance from the string constant pool if one is available.
You very rarely would ever want to ...