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Difference between const & const volatile
... register results in an actual read of the hardware - using a cached value from a previous read won't tell you about changes in the hardware state.
A quick example:
unsigned int const volatile *status_reg; // assume these are assigned to point to the
unsigned char const volatile *recv_reg; // ...
Is there a cross-domain iframe height auto-resizer that works?
...her option would be to send the iframe height to your server and then poll from that server from the parent web page with JSONP (or use a long poll if possible).
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Script parameters in Bash
...self.
The arguments are seperated by spaces, so if you would provide the -from and -to in the command, they will end up in these variables too, so for this:
./ocrscript.sh -from /home/kristoffer/test.png -to /home/kristoffer/test.txt
You'll get:
$0 # ocrscript.sh
$1 # -from
$2 # /home/...
Hashing a string with Sha256
...ta you're hashing. Hashing the two bytes "Hi" will give a different result from hashing the three bytes "Hi". You'll have to decide which you want to do. (Presumably you want to do whichever one your friend's PHP code is doing.)
For ASCII text, Encoding.UTF8 will definitely be suitable. If you're a...
What are the differences between django-tastypie and djangorestframework? [closed]
... with something written by the same peeps as the awesome django-haystack. From what I've seen on their mailing list Daniel Lindsey et al are super-helpful, and Tastypie is stable, comprehensive and well documented
Excels in giving you a sensible set of default behaviour and making building an API w...
Copy files without overwrite
...st can't seem to find a way on the command line to say "copy all the files from directory A to directory B, but if the file already exists in directory B, don't overwrite it, no matter which file is newer, and don't prompt me."
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Difference between Java Enumeration and Iterator
...s an explanation of the differences between Enumeration:
Iterators differ from
enumerations in two ways:
Iterators allow the caller to remove elements from the underlying
collection during the iteration with
well-defined semantics.
Method names have been improved.
The bottom line is, both Enumer...
Server is already running in Rails
... think this is doing the same thing here. That file was probably left over from a crash.
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GetHashCode Guidelines in C#
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@JS Bangs - From MSDN: Derived classes that override GetHashCode must also override Equals to guarantee that two objects considered equal have the same hash code; otherwise, the Hashtable type might not work correctly.
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Saving a Numpy array as an image
...An answer using PIL (just in case it's useful).
given a numpy array "A":
from PIL import Image
im = Image.fromarray(A)
im.save("your_file.jpeg")
you can replace "jpeg" with almost any format you want. More details about the formats here
...