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What is more efficient: Dictionary TryGetValue or ContainsKey+Item?
... followed by the Item basically duplicates the lookup functionality, which is the bulk of the computation in this case.
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Should I return EXIT_SUCCESS or 0 from main()?
...FAILURE, either in a return statement in main or as an argument to exit(), is the only portable way to indicate failure in a C or C++ program. exit(1) can actually signal successful termination on VMS, for example.
If you're going to be using EXIT_FAILURE when your program fails, then you might as...
Why is SQL Server 2008 Management Studio Intellisense not working?
I'm being driven to insanity trying to figure out why Intellisense just fails to work at all. The server I'm using is local and is 2008, the database is set to 2008 compatibility, Intellisense is on in every menu I can find, and yet no member list will pop up even with a CTRL-J.
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What are best practices for validating email addresses on iOS 2.0
What is the cleanest way to validate an email address that a user enters on iOS 2.0?
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What is the difference between class and instance attributes?
Is there any meaningful distinction between:
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Are Mutexes needed in javascript?
I have seen this link: Implementing Mutual Exclusion in JavaScript .
On the other hand, I have read that there are no threads in javascript, but what exactly does that mean?
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SQL select only rows with max value on a column [duplicate]
I have this table for documents (simplified version here):
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Why does MYSQL higher LIMIT offset slow the query down?
...the first OFFSET + LIMIT records (and take only LIMIT of them). The higher is this value, the longer the query runs.
The query cannot go right to OFFSET because, first, the records can be of different length, and, second, there can be gaps from deleted records. It needs to check and count each reco...
To ternary or not to ternary? [closed]
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edited Feb 16 '10 at 1:14
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How to convert latitude or longitude to meters?
If I have a latitude or longitude reading in standard NMEA format is there an easy way / formula to convert that reading to meters, which I can then implement in Java (J9)?
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