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const char* concatenation
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110
In your example one and two are char pointers, pointing to char constants. You cannot change th...
How to abandon a hg merge?
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edited Apr 3 '10 at 4:23
answered Apr 3 '10 at 4:14
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How to get all enum values in Java?
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answered Feb 16 '10 at 0:19
ColinDColinD
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find() with nil when there are no records
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Yes, just do:
Challenge.find_by_id(10)
For Rails 4 and 5:
Challenge.find_by(id: 10)
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for each loop in Objective-C for accessing NSMutable dictionary
... every class that conforms to the NSFastEnumeration protocol (available on 10.5+ and iOS), though NSDictionary is one of the few collections which lets you enumerate keys instead of values. I suggest you read about fast enumeration in the Collections Programming Topic.
Oh, I should add however that...
How can I detect if this dictionary key exists in C#?
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edited May 13 '10 at 20:38
Adam Tuttle
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What is the difference between “int” and “uint” / “long” and “ulong”?
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answered Sep 16 '10 at 6:39
Isak SavoIsak Savo
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Practical non-image based CAPTCHA approaches?
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103 Answers
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Accessing localhost:port from Android emulator
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You can access your host machine with the IP address "10.0.2.2".
This has been designed in this way by the Android team. So your webserver can perfectly run at localhost and from your Android app you can access it via "http://10.0.2.2:<hostport>".
If your emulator must ...
Does it make sense to use “as” instead of a cast even if there is no null check? [closed]
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edited Jan 27 '10 at 23:56
answered Jan 26 '10 at 14:01
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