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What is the email subject length limit?

How many characters are allowed to be in the subject line of Internet email? I had a scan of The RFC for email but could not see specifically how long it was allowed to be. I have a colleague that wants to programmatically validate for it. ...
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undefined reference to boost::system::system_category() when compiling

I'm trying to compile a program on Ubuntu 11.10 that uses the Boost libraries. I have the 1.46-dev Boost libraries from the Ubuntu Repository installed, but I get an error when compiling the program. ...
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Can you call Directory.GetFiles() with multiple filters?

I am trying to use the Directory.GetFiles() method to retrieve a list of files of multiple types, such as mp3 's and jpg 's. I have tried both of the following with no luck: ...
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How to compare a local git branch with its remote branch?

How can I see the diff between a local branch and a remote branch? 22 Answers 22 ...
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How to detect when facebook's FB.init is complete

The old JS SDK had a function called FB.ensureInit. The new SDK does not seem to have such function... how can I ensure that I do not make api calls until it is fully initiated? ...
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How can I change the default Django date template format?

...abase, %Y-%m-%d . However, when the date is passed on to the template, it comes out as something like Oct. 16, 2011 . 8 A...
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What's a quick way to comment/uncomment lines in Vim?

I have a Ruby code file open in vi, there are lines commented out with # : 46 Answers ...
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Expand a random range from 1–5 to 1–7

Given a function which produces a random integer in the range 1 to 5, write a function which produces a random integer in the range 1 to 7. ...
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Replacement for Google Code Search? [closed]

Google Code Search has been incredibly valuable to me as a developer - I use it a couple times a week to see how other developers have used (usually poorly documented) APIs. It's also convenient to see the internals of some of those APIs, or to find which API corresponds to the functionality you wa...
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How to thoroughly purge and reinstall postgresql on ubuntu? [closed]

Somehow I've managed to completely bugger the install of postgresql on Ubuntu karmic. I want to start over from scratch, but when I "purge" the package with apt-get it still leaves traces behind such that the reinstall configuration doesn't run properly. ...