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c++ boost::multi_index composite keys efficiency - c++1y / stl - 清泛IT社区，为创新赋能！
...k questions and I will try my best to clarify exactly what I mean!
From：http://stackoverflow.com/questio ... ite-keys-efficiency
Lookups involving composite keys do not go through any two-stage process as you describe. composite_key-induced orderings are normal orderings, the only special thing ...
Use '=' or LIKE to compare strings in SQL?
...So while '=' is faster, LIKE might more explicitly state your intentions.
http://support.microsoft.com/kb/316626
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Getting file size in Python? [duplicate]
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You can use os.stat(path) call
http://docs.python.org/library/os.html#os.stat
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Simplest PHP example for retrieving user_timeline with Twitter API version 1.1
...e unauthenticated requests? Not with Twitter's v1.1 API.
You need to visit http://dev.twitter.com/apps and click the "Create Application" button.
On this page, fill in whatever details you want. For me, it didn't matter, because I just wanted to make a load of block requests to get rid of spam foll...
C++ - passing references to std::shared_ptr or boost::shared_ptr
...voted answer, so I went looking for expert opinons and here they are.
From http://channel9.msdn.com/Shows/Going+Deep/C-and-Beyond-2011-Scott-Andrei-and-Herb-Ask-Us-Anything
Herb Sutter: "when you pass shared_ptrs, copies are expensive"
Scott Meyers: "There's nothing special about shared_ptr when it ...
Why do I need 'b' to encode a string with Base64?
... string binary.
What version of Python do you use? 2.x or 3.x?
Edit: See http://docs.python.org/release/3.0.1/whatsnew/3.0.html#text-vs-data-instead-of-unicode-vs-8-bit for the gory details of strings in Python 3.x
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Difference between window.location.href, window.location.replace and window.location.assign
...orrect. The assign method does add a new record to the history.
Reference: http://developer.mozilla.org/en/window.location
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undefined method `source_index' for Gem:Module (NoMethodError)
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This helped me: http://djellemah.com/blog/2013/02/27/rails-23-with-ruby-20/
I did this in combination with gem update --system 1.8.25, which might not be needed for your case.
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Ruby : How to write a gem? [closed]
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This is how I usually create and release Gems:
Sign-up for https://github.com
Sign-up for https://rubygems.org
$ gem install ore rubygems-tasks rdoc rspec
$ mine awesome_gem
cd awesome_gem/ and edit the README.rdoc and awesome_gem.gemspec, write code in lib/awesome_gem/ and adding RS...
php implode (101) with quotes
... $value = "'$value'";
}
$comma_separated = implode(",", $array);
Demo: http://codepad.org/O2kB4fRo
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