大约有 3,285 项符合查询结果（耗时：0.0310秒） [XML]
Why does the C++ STL not provide any “tree” containers?
... A third major reason to want a tree is for an always-sorted list with fast insertion/removal, but for that there is std:multiset.
– VoidStar
Feb 26 '12 at 10:09
1
...
Why is TypedReference behind the scenes? It's so fast and safe… almost magical!
...al) isn't designed to be a high-performance language. (I'm guessing that "faster than Java" was the performance goal.)
That's not to say that certain performance considerations haven't been afforded. Indeed, such features as pointers, stackalloc, and certain optimized framework functions exist la...
How to check internet access on Android? InetAddress never times out
... return true;
} catch (IOException e) { return false; }
}
+ very fast (either way), works on all devices, very reliable
- can't run on the UI thread
This works very reliably, on every device, and is very fast. It needs to run in a separate task though (e.g. ScheduledExecutorService or As...
How to undo a git pull?
... git reflog show gave this output: c9e5e4d HEAD@{0}: pull : Fast forward 1c86a22 HEAD@{1}: pull origin master: Fast forward 05c141a HEAD@{2}: pull : Fast forward Can I safely reset the HEAD to HEAD@{1}
– Kartins
Apr 28 '11 at 9:32
...
Contributing to project on github, how to “rebase my pull request on top of master”
...n't simply push again because a rebase changes history, and it's no long a fast-forward. Normally, whan a push fails with a "non-fast-forward", you'd resolve it by doing a pull, but a pull will just combine the two divergent histories, which is definitely not what you want. That would mean your old ...
What's the purpose of the LEA instruction?
...
There's a big difference between 2 operand LEA which is fast and 3 operand LEA which is slow. The Intel Optimization manual says fast path LEA is single cycle and slow path LEA takes three cycles. Moreover, on Skylake there are two fast path functional units (ports 1 and 5) and th...
Which is the preferred way to concatenate a string in Python?
... to a string variable is to use + or +=. This is because it's readable and fast. They are also just as fast, which one you choose is a matter of taste, the latter one is the most common. Here are timings with the timeit module:
a = a + b:
0.11338996887207031
a += b:
0.11040496826171875
However, t...
Remove duplicate values from JS array [duplicate]
...ace filter with a loop and get rid of other function calls:
function uniq_fast(a) {
var seen = {};
var out = [];
var len = a.length;
var j = 0;
for(var i = 0; i < len; i++) {
var item = a[i];
if(seen[item] !== 1) {
seen[item] = 1;
...
Why shouldn't I use PyPy over CPython if PyPy is 6.3 times faster?
...ve been hearing a lot about the PyPy project. They claim it is 6.3 times faster than the CPython interpreter on their site .
...
What is the fastest way to compute sin and cos together?
...e after another like a = cos(x); b = sin(x); , but I wonder if there is a faster way when needing both values.
19 Answers
...