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Convert a character digit to the corresponding integer in C
...ntage of strtol, of course, is that you may well need to read other things from the same string that come after the number.
– dfeuer
Jul 21 '12 at 21:30
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Does opacity:0 have exactly the same effect as visibility:hidden
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Here is a compilation of verified information from the various answers.
Each of these CSS properties is unique. In addition to rendering an element not visible, they have the following additional effect(s):
Collapses the space that the element would normally occupy
Re...
How to handle AccessViolationException
I am using a COM object (MODI) from within my .net application. The method I am calling throws a System.AccessViolationException, which is intercepted by Visual Studio. The odd thing is that I have wrapped my call in a try catch, which has handlers for AccessViolationException, COMException and ev...
Does SVG support embedding of bitmap images?
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Yes, you can reference any image from the image element. And you can use data URIs to make the SVG self-contained. An example:
<svg xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink">
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<image
width...
Python UTC datetime object's ISO format doesn't include Z (Zulu or Zero offset)
...age to get some default time zones, or directly subclass tzinfo yourself:
from datetime import datetime, tzinfo, timedelta
class simple_utc(tzinfo):
def tzname(self,**kwargs):
return "UTC"
def utcoffset(self, dt):
return timedelta(0)
Then you can manually add the time zone...
Eclipse: Exclude specific packages when autocompleting a class name
... not want to see.
See Java Tips and Tricks
To exclude certain types from appearing in content assist, use the type filter feature configured on the Java > Appearance > Type Filters preference page.
Types matching one of these filter patterns will not appear in the Open Type dialog and...
Python Matplotlib Y-Axis ticks on Right Side of Plot
I have a simple line plot and need to move the y-axis ticks from the (default) left side of the plot to the right side. Any thoughts on how to do this?
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An error occurred while installing pg (0.17.1), and Bundler cannot continue
...alled under mac OSX Mavericks, having the postgres app (Version 9.2.2.0 ) from www.postgresapp.com installed. The underlying problem was simpy that the since postgres was installed via the app, the configuration file resides on a location which is not the default one when installing it without post...
What is a “callback” in C and how are they implemented?
From the reading that I have done, Core Audio relies heavily on callbacks (and C++, but that's another story).
9 Answers
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Algorithm to generate all possible permutations of a list?
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Basically, for each item from left to right, all the permutations of the remaining items are generated (and each one is added with the current elements). This can be done recursively (or iteratively if you like pain) until the last item is reached at...