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C default arguments
... double x_out = in.x ? in.x : 3.14;
return f_base(i_out, x_out);
}
Now add a macro, using C's variadic macros. This way users don't have to know they're
actually populating a f_args struct and think they're doing the usual:
#define f(...) var_f((f_args){__VA_ARGS__});
OK, now all of the f...
SQLAlchemy: What's the difference between flush() and commit()?
... # been flushed yet.
s2.flush() # Now, Foo('B') is in the same state as
# Foo('A') was above.
print 3, s2.query(Foo).all()
s2.rollback() # Foo('B') has not been committed, and rolling
...
How to avoid using Select in Excel VBA
...kbook.Worksheets("SomeSheet").Range("A1:A10000")
dat = rng.Value ' dat is now array (1 to 10000, 1 to 1)
for i = LBound(dat, 1) to UBound(dat, 1)
dat(i,1) = dat(i,1) * 10 'or whatever operation you need to perform
next
rng.Value = dat ' put new values back on sheet
This is a small taster for ...
Making 'git log' ignore changes for certain paths
...
It is implemented now (git 1.9/2.0, Q1 2014) with the introduction pathspec magic :(exclude) and its short form :! in commit ef79b1f and commit 1649612, by
Nguyễn Thái Ngọc Duy (pclouds), documentation can be found here.
You now can log e...
R and version control for the solo data analyst
...e this applies to you, but it would have made our clients very nervous to know that every version of every script that we had ever produced was potentially discoverable. We used version control for code modules that were reused in multiple engagements, but did not use version control for engagement...
jQuery: Return data after ajax call success [duplicate]
...#test-arrow_functions
UPDATE (2017)
There is an even newer syntax right now called async functions with a new await keyword that instead of this code:
functionReturningPromise()
.then(data => console.log('Data:', data))
.catch(error => console.log('Error:', error));
lets you writ...
What is the behavior difference between return-path, reply-to and from?
...olstuff-threadId=123@mymailinglist.com>
This is a very simple body.
Now, let's say you are going to send it from a mailing list, that implements VERP (or some other bounce tracking mechanism that uses a different return-path). Lets say it will have a return-path of coolstuff-you=yourcompany....
Why does pthread_cond_wait have spurious wakeups?
...gt;situations where a wait times out just as a signal arrives?
> You know, I wonder if the designers of pthreads used logic like this:
> users of condition variables have to check the condition on exit anyway,
> so we will not be placing any additional burden on them if we allow
> s...
How do I use reflection to call a generic method?
...hat's the best way to call a generic method when the type parameter isn't known at compile time, but instead is obtained dynamically at runtime?
...
Getting an element from a Set
...act, the whole object 'revolves' around said key. Furthermore, the caller knows said String, but not the object itself; that's exactly why it wants to retrieve it by key. I'm using a Map now of course, but it remains odd behaviour.
– pauluss86
Jan 16 '14 at 19:...