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Convert a String In C++ To Upper Case
...ng slow on Windows when a locale is set.
I was shocked that Boost is an order of magnitude slower than the other options. I double-checked that I had -O3 enabled, and even single-stepped the asm to see what it was doing. It's almost exactly the same speed with clang++ 3.8. It has huge overhead...
Simple insecure two-way data “obfuscation”?
...ns just encrypt, and also who is no wary about the attack, -- Please don't order if you want give suggestion.
– Virbhadrasinh
Jun 23 '17 at 14:12
Cannot create an NSPersistentStoreCoordinator with a nil model
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Instead of deleting it you may eventually edit it in order to change the filename stored to the latest version of youl xcdatamodel
– furins
Jun 24 '14 at 17:18
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How to automatically reload a page after a given period of inactivity
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Hero! This is perfect thanks. I have my PHP sessions set to expire after an hour, and this is set to refresh a little over an hour. I think this should accomplish the logout after inactivity functionality i'm after.
– Tspesh
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Block Comments in a Shell Script
...he above code would result in:
This is outside the commented block
In order to uncomment the code blocks thus commented, say
alias BEGINCOMMENT="if : ; then"
instead of
alias BEGINCOMMENT="if [ ]; then"
in the example above.
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data.table vs dplyr: can one do something well the other can't or does poorly?
...ese aspects to provide a comprehensive answer/comparison (in no particular order of importance): Speed, Memory usage, Syntax and Features.
My intent is to cover each one of these as clearly as possible from data.table perspective.
Note: unless explicitly mentioned otherwise, by referring to dpl...
Check if all elements in a list are identical
...ution which optimizes away calls to obj.__eq__ when lhs is rhs, and out-of-order optimizations to allow short circuiting sorted lists more quickly.
– Glenn Maynard
Oct 2 '10 at 8:31
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What's the $unwind operator in MongoDB?
...g and obtaining the data from your storage locations.
That being said, in order to understand the concept behind the $unwind parameter, you first must understand what the use case that you are trying to quote is saying. The example document from mongodb.org is as follows:
{
title : "this is my ti...
Sleep until a specific time/date
...X and don't work under MacOS! If under Mac, goto my pure bash function)
In order to reduce forks, instead of running date two times, I prefer to use this:
Simple starting sample
sleep $(($(date -f - +%s- <<< $'tomorrow 21:30\nnow')0))
where tomorrow 21:30 could be replaced by any kind of d...
Can a CSS class inherit one or more other classes?
...et an already made, huge web software (in example, an e-commerce or a blog PHP famous software) and they employ PHP code that natively won't add multiple classes to the HTML elements they outuput. This forces you to go around and mess with source code (losing changes if you upgrade later) to make it...