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Why is unsigned integer overflow defined behavior but signed integer overflow isn't?
...expect (and that this may very depending on compiler version, optimisation settings, etc).
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Determine if Python is running inside virtualenv
..._prefix.
Using the VIRTUAL_ENV environment variable is not reliable. It is set by the virtualenv activate shell script, but a virtualenv can be used without activation by directly running an executable from the virtualenv's bin/ (or Scripts) directory, in which case $VIRTUAL_ENV will not be set. Or ...
How to convert comma-delimited string to list in Python?
... in mStr.split(',')]
It is called list comprehension, and it is based on set builder notation.
ex:
>>> mStr = "1,A,B,3,4"
>>> mList = [int(e) if e.isdigit() else e for e in mStr.split(',')]
>>> mList
>>> [1,'A','B',3,4]
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“Keep Me Logged In” - the best approach
...agine for a second that you're an attacker. You see a cryptographic cookie set for the remember-me on your session. It's 32 characters wide. Gee. That may be an MD5...
Let's also imagine for a second that they know the algorithm that you used. For example:
md5(salt+username+ip+salt)
Now, all an ...
UIButton Image + Text IOS
...face Builder, there is a very easy way to do this:
Select the button and set a title and an image. Note that if you set the background instead of the image then the image will be resized if it is smaller than the button.
Set the position of both items by changing the edge and insets. You could eve...
How do browsers pause/change Javascript when tab or window is not active?
...ave written a test specifically for this purpose:
Frame Rate Distribution: setInterval vs requestAnimationFrame
Note: This test is quite CPU intensive. requestAnimationFrame is not supported by IE 9- and Opera 12-.
The test logs the actual time it takes for a setInterval and requestAnimationFrame ...
C# '@' before a String [duplicate]
I found this in a C# study book
5 Answers
5
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Saving and Reading Bitmaps/Images from Internal memory in Android
... ImageView img=(ImageView)findViewById(R.id.imgPicker);
img.setImageBitmap(b);
}
catch (FileNotFoundException e)
{
e.printStackTrace();
}
}
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How to join absolute and relative urls?
...cJulien: a simple loop will not work, as any path with a leading / will "reset" and return scheme + netloc + lasturl: urlparse.urljoin('http://www.a.com/b/c/d', '/e') => 'http://www.a.com/e'
– MestreLion
Nov 5 '13 at 17:12
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LINUX: Link all files from one to another directory [closed]
I want to link ( ln -s ) all files that are in /mnt/usr/lib/ into /usr/lib/
4 Answers
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