大约有 44,000 项符合查询结果（耗时：0.1034秒） [XML]
PyPy — How can it possibly beat CPython?
...omment under that post, you will see that the writer of that post doesn't know link-time optimization. With link-time optimization enabled, the C code runs faster.
– Ali
Jun 26 '14 at 9:33
...
Why can't I have “public static const string S = ”stuff"; in my Class?
...{
return MyClass.MyUppercase_Public_Const_Int;
}
}
Well, now I realize this question was asked 4 years ago, but since I put around 2 hours of work, consisting of trying all sorts of different ways of answering and code formatting, into this answer, I'm still posting it. :)
But, f...
XSD - how to allow elements in any order any number of times?
...eveals all the logic and the reasoning behind the achievement of the goal. Now I do not only know how to solve this problem, but I learned a new approach of solving similar problems. Explaining this using a finite state automation is very good idea.
– egelev
Fe...
Return number of rows affected by UPDATE statements
... OUTPUT INSERTED.* INTO @temp
WHERE
StartTime > '2009 JUL 09'
-- now get the count of affected records
SELECT COUNT(*) FROM @temp
share
|
improve this answer
|
fol...
How to pass argument to Makefile from command line?
..._key \
--start-at-task="$(AT)" \
-u vagrant playbook.yml
Now when I want to call it I just run something like:
AT="build assets" make provision
or just:
make provision in this case AT is an empty string
...
Is it safe to remove selected keys from map within a range loop?
...
Sebastian's answer is accurate, but I wanted to know why it was safe, so I did some digging into the Map source code. It looks like on a call to delete(k, v), it basically just sets a flag (as well as changing the count value) instead of actually deleting the value:
b->...
C++, Free-Store vs Heap
...e-store , while malloc/free operations use the heap .
I'd like to know if there is an actual difference, in practice.
Do compilers make a distinction between the two terms? ( Free store and Heap , not new/malloc )
...
Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
.../y - 1/x^2) but they will be equally complicated.
Let's look at 1/sqrt(y) now. You can try f(x) = x^2 - 1/y, but it will be equally complicated: dx = 2xy / (y*x^2 - 1) for instance.
One non-obvious alternate choice for f(x) is: f(x) = y - 1/x^2
Then: dx = -f/f' = (y - 1/x^2) / (2/x^3) = 1/2 * x * ...
How do I draw a grid onto a plot in Python?
I just finished writing code to make a plot using pylab in Python and now I would like to superimpose a grid of 10x10 onto the scatter plot. How do I do that?
...
How do different retention policies affect my annotations?
...ection at runtime.
Example: @Deprecated
Source:
The old URL is dead now
hunter_meta and replaced with hunter-meta-2-098036. In case even this goes down, I am uploading the image of the page.
Image (Right Click and Select 'Open Image in New Tab/Window')
...