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How can I create a Set of Sets in Python?
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answered May 9 '11 at 0:18
a3nma3nm
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std::wstring VS std::string
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string? wstring?
std::string is a basic_string templated on a char, and std::wstring on a wchar...
How do API Keys and Secret Keys work? Would it be secure if I have to pass my API and secret keys to
...hree and, if the result is greater than ten, subtracts ten. So f(2) = 5, f(8) = 1, etc. Now, we can make another function, call it f', that goes backwards, by adding seven instead of three. f'(5) = 2, f'(1) = 8, etc.
That's an example of a two-way function and its inverse. Theoretically, any mathem...
Difference between CPPFLAGS and CXXFLAGS in GNU Make
... KieronKieron
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SBT stop run without exiting
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Eugene Yokota
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answered Mar 10 '11 at 19:57
Seth Tisue...
Run a callback only if an attribute has changed in Rails
...Record::Dirty is here: https://github.com/rails/rails/commit/16ae3db5a5c6a08383b974ae6c96faac5b4a3c81
Here is a blog post on these changes: https://www.ombulabs.com/blog/rails/upgrades/active-record-5-1-api-changes.html
Here is the summary I made for myself on the changes to ActiveRecord::Dirty in...
What's a quick way to test to see a file exists?
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TheNeil
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answered Aug 31 '09 at 9:47
reinrein
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XPath: How to check if an attribute exists?
... ulidtko
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answered Sep 17 '10 at 18:26
Felix KlingFelix Kling
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SEH stack 结构探索（1）--- 从 SEH 链的最底层（线程第1个SEH结构）说起 -...
...线程启动例程找到答案：ntdll32!_RtlUserThreadStart()里。0:000:x86> uf ntdll32!_Rt...线程的第 1 个 SEH 结构是什么时候构建的，我在线程启动例程找到答案：ntdll32!_RtlUserThreadStart() 里。
0:000:x86> uf ntdll32!_RtlUserThreadStart
ntdll32!_RtlUser...
Gem::LoadError for mysql2 gem, but it's already in Gemfile
... rails 4.1.5) try using this version of mysql2:
gem 'mysql2', '~> 0.3.18'
Apparently mysql2 isn't still compatible with newer version of rails because rails 4.2.4 is pretty new as the time of answering this question by me 8 September 2015 so use the above line in your Gem file and run:
bundl...