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Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?

...he misses on matice1 are not the problem because they are accessed sequentially. However for matice2 if a full column fits in L2 (i.e when you access matice2[0, 0], matice2[1, 0], matice2[2, 0] ... etc, nothing gets evicted) than there is no problem with cache misses with matice2 either. Now to go ...
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C# int to byte[]

...sides, doing the assignment is cheap since it does not copy the memory nor allocate new memory, it just adds a new name to the already allocated array. So why not do it? – paracycle May 7 '19 at 15:54 ...
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How can I enable or disable the GPS programmatically on Android?

I know that the question about turning on/off GPS programatically on android has been discussed many times , and the answer is always the same: ...
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Build .so file from .c file using gcc command line

...lo.c to do it in one step. – Jonathan Leffler I also suggest to add -Wall to get all warnings, and -g to get debugging information, to your gcc commands. – Basile Starynkevitch share | impro...
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Why doesn't Java offer operator overloading?

... It's pretty simple really... Just do like Python and have no overloaded assignment. – L̲̳o̲̳̳n̲̳̳g̲̳̳p̲̳o̲̳̳k̲̳̳e̲̳̳ Jun 5 '10 at 14:32 ...
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Sorting a Python list by two fields

...t. You should post your own question separately on SO if it is not specifically related to the answer here or the OP's original question. – pbible Nov 23 '15 at 16:59 7 ...
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Highlight all occurrence of a selected word?

How can I highlight all occurrence of a selected word in GVim, like in Notepad++? 15 Answers ...
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How to strip HTML tags from a string in SQL Server?

... got data in SQL Server 2005 that contains HTML tags and I'd like to strip all that out, leaving just the text between the tags. Ideally also replacing things like < with < , etc. ...
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Difference between Control Template and DataTemplate in WPF

... Typically a control is rendered for its own sake, and doesn't reflect underlying data. For example, a Button wouldn't be bound to a business object - it's there purely so it can be clicked on. A ContentControl or ListBox, however,...
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Are there disadvantages to using a generic varchar(255) for all text-based fields?

...stcode , first name , last name , town , country , phone number etc, all of which are defined as VARCHAR(255) even though none of these fields will ever come close to having 255 characters. (If you're wondering, it's this way because Ruby on Rails migrations map String fields to VARCHAR(25...