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Setting an object to null vs Dispose()
...es (non-memory resources). These could be UI handles, network connections, file handles etc. These are limited resources, so you generally want to release them as soon as you can. You should implement IDisposable whenever your type "owns" an unmanaged resource, either directly (usually via an IntPtr...
理解和配置 Linux 下的 OOM Killer - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
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Killed process 9682, UID 27, (mysqld) total-vm:47388kB, anon-rss:3744kB, file-rss:80kB
httpd invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0
httpd cpuset=/ mems_allowed=0
Pid: 8911, comm: httpd Not tainted 2.6.32-279.1.1.el6.i686 #1
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21556 total pagecache pag...
Exporting functions from a DLL with dllexport
...a conditional macro in a header that will be included in all of the source files in your DLL project:
#ifdef LIBRARY_EXPORTS
# define LIBRARY_API __declspec(dllexport)
#else
# define LIBRARY_API __declspec(dllimport)
#endif
Then on a function that you want to be exported you use LIBRARY_API:
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How to create a GUID/UUID in Python
... @JayPatel Does shortuuid not work for Python 3? If not, please file a bug.
– Stavros Korokithakis
Aug 22 '16 at 2:56
1
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psql: FATAL: Peer authentication failed for user “dev”
...well. I also think this is a much more preferable way than changing config files, especially when you don't have a clue about what you are doing and just following SO answer to solve your problem.
– borisano
Nov 24 '15 at 15:07
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Does every web request send the browser cookies?
...etween domains. That helps with reducing the size of HTTP calls for static files, such as the images and scripts you mentioned.
Example: you have 4 cookies at www.stackoverflow.com; if you make a request to www.stackoverflow.com/images/logo.png, all those 4 cookies will be sent.
However, if you requ...
How to redirect to a 404 in Rails?
...method.
def render_404
respond_to do |format|
format.html { render :file => "#{Rails.root}/public/404", :layout => false, :status => :not_found }
format.xml { head :not_found }
format.any { head :not_found }
end
end
and call it in your action
def action
# here the co...
In a storyboard, how do I make a custom cell for use with multiple controllers?
...w. I've got no magical workarounds for you, other than suggesting that you file a bug.)
A storyboard is, in essence, not much more than a collection of .xib files. When you load up a table view controller that has some prototype cells out of a storyboard, here's what happens:
Each prototype cell ...
Eclipse will not start and I haven't changed anything
...lashes and disappears followed by a message telling me to check the .log file. I've since restarted the pc multiple times, tried running it in safe mode and ran eclipse.exe -clean and nothing works.
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How to compare two NSDates: Which is more recent?
I am trying to achieve a dropBox sync and need to compare the dates of two files. One is on my dropBox account and one is on my iPhone.
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