大约有 48,000 项符合查询结果（耗时：0.0647秒） [XML]
std::shared_ptr of this
...is std::enable_shared_from_this just for this purpose. You inherit from it and you can call .shared_from_this() from inside the class. Also, you are creating circular dependencies here that can lead to resource leaks. That can be resolved with the use of std::weak_ptr. So your code might look like t...
Resync git repo with new .gitignore file
...gnore already-tracked files":
git rm --cached `git ls-files -i --exclude-standard`
Bassim suggests in his edit:
Files with space in their paths
In case you get an error message like fatal: path spec '...' did not match any files, there might be files with spaces in their path.
You can remove all ...
Hosting Git Repository in Windows
...here currently a way to host a shared Git repository in Windows? I understand that you can configure the Git service in Linux with:
...
Database: To delete or not to delete records
...t you figure out (to the extent possible of course) an aggregation scheme, and shove that off to another table. This will keep your primary table clean of 'deleted' data, as well as keep your secondary table optimized for monitoring purposes (or whatever you had in mind).
For temporal data, see: ht...
Amazon S3 boto - how to create a folder?
...olders in S3. S3 does not have folders, even though the management console and many tools do represent keys with slashes as such. See Working with Folders and read the part: "So the console uses object key names to present folders and hierarchy. In Amazon S3, you have only buckets and objects."
...
is_file or file_exists in PHP
...rk to work, you should add clearstatcache(); since the results for is_file and file_exists are cached throughout the script. Anyways file_exists() is a bit slower, but shouldn't make any difference unless you perform around 100K file checks. php.net/manual/en/function.clearstatcache.php
...
Manipulate a url string by adding GET parameters
I want to add GET parameters to URLs that may and may not contain GET parameters without repeating ? or & .
15 Answe...
Is it possible to specify your own distance function using scikit-learn K-Means Clustering?
...mple 2 pass, first sample sqrt(N)
from __future__ import division
import random
import numpy as np
from scipy.spatial.distance import cdist # $scipy/spatial/distance.py
# http://docs.scipy.org/doc/scipy/reference/spatial.html
from scipy.sparse import issparse # $scipy/sparse/csr.py
__date__ ...
Is there a CSS selector by class prefix?
...hecks any other classes after the first if multiple classes are specified, and adds a bonus of checking the first class in case the attribute value is space-padded (which can happen with some applications that output class attributes dynamically).
Naturally, this also works in jQuery, as demonstra...
how do I use UIScrollView in Interface Builder?
...ubclass of UIScrollvView that checks if there is just one subview at (0,0) and then automatically sets the contentSize based on that subview.
– Stefan Arentz
Jul 16 '09 at 12:15
1
...