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Named regular expression group “(?Pregexp)”: what does “P” stand for?
...Perl 5; O'Reilly
publishes books about both languages.)
As you may know, Python 1.5 adds a new regular expression module that
more closely matches Perl's syntax. We've tried to be as close to the
Perl syntax as possible within Python's syntax. However, the regex
syntax has some Python...
Non-type template parameters
...
In C++20 this is now allowed provided that the type has strong structured equality, is a literal, no mutable/volatile subobjects and where the spaceship operator is public.
– Rakete1111
Sep 12 '18 at 13:...
Xcode 4 - detach the console/log window
... into its own window by just letting it drop outside the current window). Now reform it to your hearts content; it will stay that way. Also don't forget the little controls at the top right of the console window that slide the local variable display out of the way so you can have a full-width conso...
node.js child process - difference between spawn & fork
...uire('child_process').fork('child.js'); for example on my main app, I will now have 2 seperate cores running. If I were to run a heavy for loop in the child.js (process), I'd essentially be utilizing more cores to power child.js, right? Would that cpu usage be effecting my main app core though?
...
Can I record/play macros in Visual Studio 2012/2013/2015/2017/2019?
...ncluding macro record/replay, macro projects and the Macros IDE. While we know that macros have been valuable for those who use them, unfortunately our usage data shows that less than 1% of Visual Studio developers take advantage of this feature. Therefore, we’ve found ourselves investing more dee...
How to iterate over arguments in a Bash script
...
Rewrite of a now-deleted answer by VonC.
Robert Gamble's succinct answer deals directly with the question.
This one amplifies on some issues with filenames containing spaces.
See also: ${1:+"$@"} in /bin/sh
Basic thesis: "$@" is correc...
How to map calculated properties with JPA and Hibernate
...e::numeric / 100) * " +
" cents * " +
" date_part('month', age(now(), createdOn)" +
") " +
"/ 12) " +
"/ 100::numeric")
private double interestDollars;
share
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How does OAuth 2 protect against things like replay attacks using the Security Token?
...nded "I must have that donut!". He said "sure that will be $30."
Yeah I know, $30 for one donut! It must be delicious! I reached for my wallet when suddenly I heard the chef yell "NO! No donut for you". I asked: why? He said he only accepts bank transfers.
Seriously? Yep, he was serious. I almost...
Should I pass an std::function by const-reference?
...id> run_in_ui_thread( std::function<void()> const& ) // (B)
Now, we are likely to use these as follows:
run_in_ui_thread( [=]{
// code goes here
} ).wait();
which will create an anonymous closure (a lambda), construct a std::function out of it, pass it to the run_in_ui_thread fun...
Learn C first before learning Objective-C [closed]
...s, they started with Obj-C and learned only as much C as necessary.
Every now and then I see how they solve a problem entirely in Obj-C, sometimes resulting in a very clumsy solutions. Usually I then replace some Obj-C code with pure C code (after all you can mix them as much as you like, the conte...