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Why declare a struct that only contains an array in C?
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It allows you to pass the array to a function by value, or get it returned by value from a function.
Structs can be passed by value, unlike arrays which decay to a pointer in these contexts.
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What is & used for
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& is HTML for "Start of a character reference".
& is the character reference for "An ampersand".
&current; is not a standard character reference and so is an error (browsers may try to perform error recovery but you should...
Controlling a USB power supply (on/off) with Linux
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Note. The information in this answer is relevant for the older kernels (up to 2.6.32). See tlwhitec's answer for the information on the newer kernels.
# disable external wake-up; do this only once
echo disabled > /sys/bus/usb/devices/...
PHP prepend associative array with literal keys?
...ociative array with literal key=>value pairs? I know that array_unshift() works with numerical keys, but I'm hoping for something that will work with literal keys.
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How can I get a user's media from Instagram without authenticating as a user?
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This is late, but worthwhile if it helps someone as I did not see it in Instagram's documentation.
To perform GET on https://api.instagram.com/v1/users/<user-id>/media/recent/ (at present time of writing) you actually do not need OAuth a...
How to shrink the .git folder
...ot recommended).
you can call git gc --aggressive --prune, which will perform garbage collection in your repository and prune old objects. do you have a lot of binary files (archives, images, executables) which change often? those usually lead to huge .git folders (remember, git stores snapshots fo...
Is there a command to list all Unix group names? [closed]
...have users assigned to them, use this command:
cut -d: -f1 /etc/group | sort
For more info- >
Unix groups,
Cut command,
sort command
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ASP.Net MVC Html.HiddenFor with wrong value
I'm using MVC 3 in my project, and I'm seeing a very strange behavior.
4 Answers
4
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KeyValuePair VS DictionaryEntry
... using a KeyValuePair<TKey,TValue> is that we can give the compiler more information about what is in our dictionary. To expand on Chris' example (in which we have two dictionaries containing <string, int> pairs).
Dictionary<string, int> dict = new Dictionary<string, int>()...
Capturing Ctrl-c in ruby
...errupt derive from Exception, your exception handling is stopping the exit or interrupt in its tracks. Here's the fix:
Wherever you can, change
rescue Exception => e
# ...
end
to
rescue StandardError => e
# ...
end
for those you can't change to StandardError, re-raise the exceptio...