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What is the difference between user and kernel modes in operating systems?
...rwise, it could set itself to ring 0 and rings would be useless.
In other words, cannot modify the current segment descriptor, which determines the current ring.
cannot modify the page tables: How does x86 paging work?
In other words, cannot modify the CR3 register, and paging itself prevents modi...
How can I replace every occurrence of a String in a file with PowerShell?
...
You could try something like this:
$path = "C:\testFile.txt"
$word = "searchword"
$replacement = "ReplacementText"
$text = get-content $path
$newText = $text -replace $word,$replacement
$newText > $path
sha...
When is null or undefined used in JavaScript? [duplicate]
...ecause "undefined" is indeed undefined. But "undefined" is not a reserved word in JavaScript. So you can just do this: var undefined = "Magic!"; // Yes this works Now your code may or may not work. It is better to do a typeof(x) !== "undefined"
– ProVega
A...
How to document a method with parameter(s)?
... may think this style looks "ugly". But I would say "ugly" is a subjective word. A more neutual way is to say, this style is not mainstream so it may look less familiar to you, thus less comfortable. Again, "comfortable" is also a subjective word. But the point is, all the benefits described above a...
Javascript fuzzy search that makes sense
... The only problem with this library that I faced is when the word is complete but spelled incorrectly for example, if the correct word was "XRP" and If i searched "XRT" it doesnt give me a score
– PirateApp
Dec 23 '17 at 5:02
...
Bash continuation lines
...n lines
there is an extra space, because (after bash manual):
If the word is double-quoted, ${name[*]} expands to a single word with
the value of each array member separated by the first character of the
IFS variable
So set IFS='' to get rid of extra space
$ IFS=''
$ echo "${str_array[*...
Difference between 'new operator' and 'operator new'?
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"operator new" vs "new keyword"
– user997112
Aug 8 '14 at 12:27
2
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Why is it OK to return a 'vector' from a function?
Please consider this code. I have seen this type of code several times. words is a local vector. How is it possible to return it from a function?
...
Get line number while using grep
...o display the results with the line numbers, you might try this
grep -nr "word to search for" /path/to/file/file
The result should be something like this:
linenumber: other data "word to search for" other data
share
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Performance optimization strategies of last resort [closed]
...ring out things that the programmer knows are fairly predictable. In other words, don't "interpret" the sequence of things to do, "compile" it.
That redesign is done, shrinking the source code by a factor of 4, and the time is reduced to 10 seconds.
Now, because it's getting so quick, it's hard ...