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Is there any overhead to declaring a variable within a loop? (C++)

...this basic thing. Once he laughed at me declaring a variable inside a loop and I was wondering what's wrong until he cited performance as the reason not to do so and I was like "WTF!?". – Mehrdad Afshari Jun 11 '09 at 19:35 ...
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I ran into a merge conflict. How can I abort the merge?

I used git pull and had a merge conflict: 12 Answers 12 ...
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How do you squash commits into one patch with git format-patch?

...throwaway branch as follows. If your commits are in the "newlines" branch and you have switched back to your "master" branch already, this should do the trick: [adam@mbp2600 example (master)]$ git checkout -b tmpsquash Switched to a new branch "tmpsquash" [adam@mbp2600 example (tmpsquash)]$ git m...
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Disabling implicit animations in -[CALayer setNeedsDisplayInRect:]

...hange of sublayers within one of my layers, as well as changes in the size and contents of the layer. I believe the contents key is the one you're looking for in order to prevent the crossfade on updated drawing. Swift version: let newActions = [ "onOrderIn": NSNull(), "onOrderO...
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Can I set a TTL for @Cacheable

I am trying out the @Cacheable annotation support for Spring 3.1 and wondering if there is any way to make the cached data clear out after a time by setting a TTL? Right now from what I can see I need to clear it out myself by using the @CacheEvict , and by using that together with @Scheduled I...
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When do you use the “this” keyword? [closed]

...ned in the same class You can avoid the first usage by not having member and local variables with the same name in scope, for example by following common naming conventions and using properties (Pascal case) instead of fields (camel case) to avoid colliding with local variables (also camel case). ...
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What's default HTML/CSS link color?

...he foreground colors of hyperlinks, among other things, are on track for standardization in the form of guidelines for expected default rendering behavior. In particular, taken from the section Phrasing content, the recommended default colors for unvisited and visited hyperlinks are the following: ...
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SQL statement to get column type

... FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'yourTableName' AND COLUMN_NAME = 'yourColumnName' share | improve this answer | follow | ...
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Very Long If Statement in Python [duplicate]

...r example: if (abcdefghijklmnopqrstuvwxyz > some_other_long_identifier and here_is_another_long_identifier != and_finally_another_long_name): # ... your code here ... pass share | ...
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Rails Admin vs. ActiveAdmin [closed]

I've been looking into some rails admin plugins and came across these: 3 Answers 3 ...