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Is there a performance difference between i++ and ++i in C++?
...xtremely:
Flags (--std=c++0x) ++i i++
-DPACKET_SIZE=50 -O1 0.05 0.74
-DPACKET_SIZE=50 -O3 0.08 0.97
-DPACKET_SIZE=500 -O1 0.05 2.79
-DPACKET_SIZE=500 -O3 0.08 2.18
-DPACKET_SIZE=5000 -O3 0.07 21.90
Conclusion
Performance-wise
If you do not need the previo...
Execute JavaScript code stored as a string
... with Function() code isn't executed until F() (use case? check for syntax error but don't want to execute the code)
– G3z
Jan 3 '15 at 1:02
2
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GitHub: Permission denied (publickey). fatal: The remote end hung up unexpectedly
...recisely this link should be helpful
https://help.github.com/articles/error-permission-denied-publickey
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NSPredicate: filtering objects by day of NSDate property
...tyName" inManagedObjectContext:moc]];
[request setPredicate:predicate];
NSError *error = nil;
NSArray *results = [moc executeFetchRequest:request error:&error];
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Send email using java
...newTrustedTransport();
} catch (IOException ex) {
log.error(null, ex);
} catch (GeneralSecurityException ex) {
log.error(null, ex);
}
}
private static File getGmailDataDirectory() {
return new File(org.yccheok.jstock.gui.Utils.getUser...
What does “Git push non-fast-forward updates were rejected” mean?
...my development. I'm trying to commit changes to GitHub and I'm getting the error.
6 Answers
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Get nth character of a string in Swift programming language
...e values you can use this implementation
Why is this not built-in?
The error message says "see the documentation comment for discussion". Apple provides the following explanation in the file UnavailableStringAPIs.swift:
Subscripting strings with integers is not available.
The concept of...
What do 3 dots next to a parameter type mean in Java?
...them to a method which takes array as a parameter.
These 2 approaches were error-prone - constructing an array of parameters every time and difficult to maintain - as the addition of new argument may result in writing a new overloaded method.
Advantages of varargs
Offers a much simpler option.
Les...
Installing PIL with pip
...
I got a clang error on OSX Mavericks when I tried this, but I found that this answer helped with that: stackoverflow.com/a/22322645/16959
– Jason Sperske
Apr 25 '14 at 21:38
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How to install and run phpize
...apt-get install php5-dev . But now when I run phpize I get the following error :
16 Answers
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