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How do the likely/unlikely macros in the Linux kernel work and what is their benefit?
...irst the printf and then puts and the retq return.
With __builtin_expect
Now replace if (i) with:
if (__builtin_expect(i, 0))
and we get:
0000000000000000 <main>:
0: 48 83 ec 08 sub $0x8,%rsp
4: 31 ff xor %edi,%edi
6: e8 00 0...
Why does C++ not have reflection?
...hing at compile-time.
boost::type_traits is a simple
example. You want to know about type
T? Check its type_traits. In C#,
you'd have to fish around after its
type using reflection. Reflection
would still be useful for some
things (the main use I can see,
which metaprogramming can't easily
replace, ...
Can Java 8 code be compiled to run on Java 7 JVM?
...
Now I see: Your "No" answers the question's headline, not the question's body.
– Abdull
Oct 28 '14 at 17:37
...
When should I really use noexcept?
...iers right after they came out then the answers would be very different to now.
Having to think about whether or not I need to append noexcept after every function declaration would greatly reduce programmer productivity (and frankly, would be a pain).
Well, then use it when it's obvious that ...
Prefer composition over inheritance?
...ember of both classes.
Update: Just came back to my answer and it seems now that it is incomplete without a specific mention of Barbara Liskov's Liskov Substitution Principle as a test for 'Should I be inheriting from this type?'
...
How to become an OpenCart guru? [closed]
...ramework relies on the route=aaa/bbb/ccc in the query string parameter to know what to load, and is the underpinning feature to finding the files you need to edit for each page. Most route's actually only use the aaa/bbb which should be seen as two parts, however some contain three parts aaa/bbb/ccc...
Draw radius around a point in Google map
I'm using the Google Maps API and have added markers. Now I want to add a 10 mile radius around each marker, meaning a circle that behaves appropriately while zooming. I have no idea how to do that and it seems it's not something common.
...
IIS AppPoolIdentity and file system write access permissions
...s an issue with IIS 7.5 and ASP.NET that I've been researching and getting nowhere with. Any help would be greatly appreciated.
...
How to pass the values from one activity to previous activity
.... Shared Preferences
Suppose you want to store username. So there will be now two thing a Key Username, Value Value.
How to store
// Create object of SharedPreferences.
SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(this);
//now get Editor
SharedPreferences.Edito...
Add regression line equation and R^2 on graph
... parse = TRUE) +
geom_point()
p
@shabbychef Now it is possible to match the variables in the equation to those used for the axis-labels. To replace the x with say z and y with h one would use:
p <- ggplot(data = df, aes(x = x, y = y)) +
geom_smooth(method = "lm"...