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What does gcc's ffast-math actually do?
..., it disables setting errno after single-instruction math functions, which means avoiding a write to a thread-local variable (this can make a 100% difference for those functions on some architectures).
Third, it makes the assumption that all math is finite, which means that no checks for NaN (or ze...
When should I use jQuery's document.ready function?
...g the DOM accurately and it's not always needed or the best option. What I mean is that when you develop a large jQuery plugin for example you hardly use it throughout the code because you're trying to keep it DRY, so you abstract as much as possible in methods that manipulate the DOM but are meant ...
Django REST framework: non-model serializer
...face, which I need to implement, is not working with my models directly (I mean the get, put, post, delete operations). Instead, it provides other services with some calculation results. On a request my service makes some calculations and just returns the results back (doesn't store the results in i...
Scala downwards or decreasing for loop?
....
1st Solution: with "to" and "by"
//It will print 10 to 0. Here by -1 means it will decremented by -1.
for(i <- 10 to 0 by -1){
println(i)
}
2nd Solution: With "to" and "reverse"
for(i <- (0 to 10).reverse){
println(i)
}
3rd Solution: with "to" only
//Here (0,-1) mean...
LINQ OrderBy versus ThenBy
... It doesn't perform well (because it reorders the whole sequence) - do you mean the 2nd or 3rd order by reorders the whole sequence ? if so, how will it still translate to ThenBy after having re-ordered the sequence discarding the preceding ordering ?
– Veverke
...
Uploading base64 encoded Image to Amazon S3 via Node.js
...Type, when I download the files I won't be able to get the correct file? I mean, I will get such a corrupted file? Thanks in advance!
– alexventuraio
Jun 14 '16 at 22:25
2
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Rollback a Git merge
...mmit anything in between. Without --no-ff git will just do a fast forward, meaning your branches HEAD will be set to HEAD of the merged branch. To resolve this find the commit-id you want to revert to and git reset --hard $COMMITID.
...
Mockito: List Matchers with generics
...cluding type or null checks. In Mockito 2.x, any(Foo.class) was changed to mean "any instanceof Foo", but any() still means "any value including null".
NOTE: The above has switched to ArgumentMatchers in newer versions of Mockito, to avoid a name collision with org.hamcrest.Matchers. Older versions...
Rails Console: reload! not reflecting changes in model files? What could be possible reason?
...the console environment. It does not re-initialize existing objects.
This means if you have already instantiated any objects, their attributes would not be updated - including newly introduced validations. However, if you create a new object, its attributes (and also validations) will reflect the r...
What would cause an algorithm to have O(log log n) complexity?
...d approximately log (√n) = log (n1/2) = (1/2) log n digits in √n. This means that, each time you take a square root, you're roughly halving the number of digits in the number. Because you can only halve a quantity k O(log k) times before it drops down to a constant (say, 2), this means you can o...