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Xcode build failure “Undefined symbols for architecture x86_64”
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UPD
Apple requires to use arm64 architecture. Do not use x32 libraries in your project
So the answer below is not correct anymore!
Old answer
The new Xcode 5.1 sets the architecture armv7,armv7s,and arm64 as default.
And sometimes the error "build failure “Undefi...
Rails: Using build with a has_one association in rails
...user.profile.build # this will throw error
Read the has_one association documentation for more details.
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Variable is accessed within inner class. Needs to be declared final
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If you don't want to make it final, you can always just make it a global variable.
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Is DateTime.Now the best way to measure a function's performance?
... is quite a bit slower than DateTime.UtcNow due to the work that has to be done with timezones, DST and such.
DateTime.UtcNow typically has a resolution of 15 ms. See John Chapman's blog post about DateTime.Now precision for a great summary.
Interesting trivia: The stopwatch falls back on DateTim...
Check if a number has a decimal place/is a whole number
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I didn't down vote but I'd say its something to do with 20.0, still has a decimal point and satisfies the above. +1 from me anyway for teaching me something new :)
– Abe Petrillo
Sep 1 '11 at 16:...
Regular Expression For Duplicate Words
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Makes me wonder; is it possible to do \0 too? (Where \0 is the whole regex, up to the current point OR where \0 refers to the whole regex)
– Pindatjuh
May 12 '10 at 22:37
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Check variable equality against a list of values
...e across this 'trick' lately which is useful if the values are strings and do not contain special characters. For special characters is becomes ugly due to escaping and is also more error-prone due to that.
/foo|bar|something/.test(str);
To be more precise, this will check the exact string, but t...
Get the device width in javascript
... width via the screen.width property.
Sometimes it's also useful to use window.innerWidth (not typically found on mobile devices) instead of screen width when dealing with desktop browsers where the window size is often less than the device screen size.
Typically, when dealing with mobile devices A...
Java compiler level does not match the version of the installed Java project facet
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Can you do it: - Right-click on your project - Click Properties - Click the "Project Facets" option on the left menu - Under Facets section "Java" on the right, change it to "1.6", "1.7" or your version... - Click Ok
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Linq: adding conditions to the where clause conditionally
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If you do not call ToList() and your final mapping to the DTO type, you can add Where clauses as you go, and build the results at the end:
var query = from u in DataContext.Users
where u.Division == strUserDiv
&& u.A...