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Why is creating a new process more expensive on Windows than Linux?
...patibility engine to find the program in the application compatibility database. This step causes enough overhead that Microsoft provides a group policy option to disable the compatibility engine on WS2003 for performance reasons.
The Win32 runtime libraries (kernel32.dll, etc.) also do a lot of re...
How does Java Garbage Collection work with Circular References?
... live even longer.
Nonetheless, the basic idea remains the same: it's all based on starting from some root set of things that it takes for granted could still be used, and then chasing all the pointers to find what else could be in use.
Interesting aside: may people are often surprised by the degr...
Should Javadoc comments be added to the implementation?
...es. As a result, users would have a different understanding of your method based on whether they examine the method in the supertype or the subtype. Use @inheritDoc or don't provide a documentation - The IDEs will take the lowest available text to use in their Javadoc view.
As an aside, if your ov...
Which “href” value should I use for JavaScript links, “#” or “javascript:void(0)”?
...e. I suppose the main point is that the HTML element shouldn't be selected based on its default presentation appearance, but rather its significance to the structure of the document.
– crush
Sep 3 '14 at 13:08
...
What are C++ functors and their uses?
...other function object type during runtime (at least unless it extends some base class, which therefore gives some overhead)
Used instead of virtual function:
Features:
Function object (non-virtual) doesn't require vtable and runtime dispatching, thus it is more efficient in most cases
Cons:...
difference between socket programming and Http programming
...systems together, an IP address is the address of the
machine over an IP based network.
With socket connection you can design your own protocol for network connection between two systems.
With Socket connection you need to take care of all the lower-level details of a TCP/IP connection.
...
Why does CSS not support negative padding?
...style="width:100%;height:auto;" >
This DIV's height will change based the width of the screen.
</div>
</div>
With the following CSS, we would be able to vertically center the content of the inner div within the outer div:
.vertical-align {
position: absolute;
to...
Can you issue pull requests from the command line on GitHub?
... man page of hub:
git pull-request [-f] [TITLE|-i ISSUE|ISSUE-URL] [-b BASE] [-h HEAD]
Opens a pull request on GitHub for the project that the "origin" remote points to. The default head of the pull request is the current branch. Both base and head of the pull request can be explicitly...
Proper way to declare custom exceptions in modern Python?
...r(Exception):
def __init__(self, message, errors):
# Call the base class constructor with the parameters it needs
super(ValidationError, self).__init__(message)
# Now for your custom code...
self.errors = errors
That way you could pass dict of error messages t...
CGridCellNumeric - A numeric cell class for the MFC Grid - C/C++ - 清泛网 - 专注IT技能提升
...er get to it, but I think it would be cool if the cell supported different based numbers other than just base 10. Another possibility is to support exponential format. But that is probably going to be more work than what I am willing to put out.
Credits
Chris Maunder for his excellent grid contr...