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What's the difference between using CGFloat and float?
... is just a typedef for either float or double. You can see for yourself by Command-double-clicking on "CGFloat" in Xcode — it will jump to the CGBase.h header where the typedef is defined. The same approach is used for NSInteger and NSUInteger as well.
These types were introduced to make it easie...
What does the 'standalone' directive mean in XML?
...or not your parser actually does this is another question, but a standards-compliant validating parser (like a browser) should.
Note that if you do not specify a DTD, then the standalone declaration "has no meaning," so there's no reason to use it unless you also specify a DTD.
...
Why would iterating over a List be faster than indexing through it?
...he beginning of the list and goes through every item. This means that your complexity is effectively O(N^2) just to traverse the list!
If instead I did this:
for(String s: list) {
System.out.println(s);
}
then what happens is this:
head -> print head -> item1 -> print item1 -> i...
Which timestamp type should I choose in a PostgreSQL database?
...s fantastic and Option 3 is fine in the general case. It is, however, an incomplete view of time and timezones and can be supplemented:
Store the name of a user’s time zone as a user preference (e.g. America/Los_Angeles, not -0700).
Have user events/time data submitted local to their frame of re...
When splitting an empty string in Python, why does split() return an empty list while split('\n') re
...
The second mode is useful for delimited data such as CSV where repeated commas denote empty fields. For example:
>>> data = '''\
Guido,BDFL,,Amsterdam
Barry,FLUFL,,USA
Tim,,,USA
'''
>>> for line in data.splitlines():
print line.split(',')
['Guido', 'BDFL', '', 'Amster...
Can you use CSS to mirror/flip text?
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It is certainly the nost standards compliant answer, unfortunately we don't live in a world where this actually works for all use cases yet.
– Chris Sobolewski
Oct 20 '13 at 2:10
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How can I remove the string “\n” from within a Ruby string?
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Clang optimization levels
...ate to in terms of specific optimisation arguments ( -funswitch-loops , -fcompare-elim , etc.)
3 Answers
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How to skip “Loose Object” popup when running 'git gui'
...Git v1.7.9 or newer, you can disable the warning dialog with the following command:
git config --global gui.gcwarning false
If you are using an older version, then you can edit /lib/git-core/git-gui and remove the after 1000 hint_gc line, or edit /usr/share/git-gui/lib/database.tcl and remove the...