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kernel stack and user space stack
...rence between kernel stack and user stack ?
In short, nothing - apart from using a different location in memory (and hence a different value for the stackpointer register), and usually different memory access protections. I.e. when executing in user mode, kernel memory (part of which is the ker...
Remove header and footer from window.print()
I am using window.print() for printing page, but I got header and footer contains page title, file path, page number and date. How to remove them?
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How to validate an e-mail address in swift?
... doesn't detect email.@invalid.com or email@.invalid.com. The answer below from @alexcristea does
– Ben Sullivan
Nov 23 '16 at 9:42
4
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How to prevent blank xmlns attributes in output from .NET's XmlDocument?
When generating XML from XmlDocument in .NET, a blank xmlns attribute appears the first time an element without an associated namespace is inserted; how can this be prevented?
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What does (x ^ 0x1) != 0 mean?
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@supercat: When a conversion from floating-point to integer is called for, the conversion is implicit (doesn't require cast syntax). But no conversion is triggered by bitwise operators, they simply fail for floating-point types.
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Spring @PostConstruct vs. init-method attribute
...nit-method in xml was preferred way , as it decouples java classes (beans) from any spring specific classes/annotations.So if you are building a library that does not need to be dependent on spring infrastructure beans then use of init-method was preferred.During creation method u can specify the me...
Speed up the loop operation in R
... names.
So how better is it?
I run each function for data.frame with nrow from 1,000 to 10,000 by 1,000 and measure time with system.time
X <- as.data.frame(matrix(sample(1:10, n*9, TRUE), n, 9))
system.time(dayloop2(X))
Result is
You can see that your version depends exponentially from nr...
Suppressing “is never used” and “is never assigned to” warnings in C#
...code. The first ("... is never used") is usually a code-smell of leftovers from earlier versions of the code. Perhaps code was deleted, but fields left behind.
The second is usually a code-smell for incorrectly used fields. For instance, you might incorrectly write the new value of a property back ...
How do I run all Python unit tests in a directory?
... This worked for me. I have a tests folder with four files, run this from my Linux terminal, great stuff.
– JasTonAChair
Sep 22 '16 at 9:42
5
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How to generate random number in Bash?
...are not random. If you specify shuf -i 1-10 -n 10 you will get all numbers from 1 to 10 exactl one. If you specify -n 15 you will still get only those 10 numbers exactly once. That is really only shuffling, not generating random numbers.
– radlan
Apr 27 at 13:0...