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Error handling in C code

What do you consider "best practice" when it comes to error handling errors in a consistent way in a C library. 22 Answers ...
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How to find the lowest common ancestor of two nodes in any binary tree?

...n, but the root==p || root==q => return root bit seems overoptimistic. What if it turns out root is p/q, but the other sought-for node is not actually in the tree? – Ian Durkan Jun 3 '11 at 2:12 ...
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Hidden Features of Java

After reading Hidden Features of C# I wondered, What are some of the hidden features of Java? 100 Answers ...
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How to turn NaN from parseInt into 0 for an empty string?

... the correct default when your preferred default is ZERO (granted, this is what the OP wanted). As you have mentioned, due to the falsy nature of the '0' input, it is treated as invalid input in this case, and the statement will return the default value instead (maybe not what was expected!) ...
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What's the best manner of implementing a social activity stream? [closed]

...s a serialized object with meta-data for the activity where you can put in whatever you want This limits the searches/lookups, you can do in the feeds, to users, time and activity types, but in a facebook-type activity feed, this isn't really limiting. And with correct indices on the table the loo...
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What is the difference between CHARACTER VARYING and VARCHAR in PostgreSQL?

...exposed to COBOL but I have been exposed to English and i think "VARCH ARe what?" :-) – inor Oct 1 '14 at 4:54 8 ...
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Struct Constructor in C++?

...ind this old comment. :) Yeesh wish I could edit it...even I'm confused at what I wrote. I think I omitted the word "bases" from the end but even that sucks. – GManNickG Apr 5 '13 at 23:40 ...
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What is the use of printStackTrace() method in Java?

...intStackTrace is called on the IOException object in the catch block. What does printStackTrace() actually do? 10 An...
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Redis: Show database size/size for keys

...ds a bit of introspection of key names via regexs that give you an idea of what kinds of application keys (according to whatever naming structure you're using), are stored in Redis. Combined with the more general output of redis-sampler, this should give you an extremely good idea of what's going on...
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What is the difference between '@' and '=' in directive scope in AngularJS?

...e "title" is the interpolated value of {{title}}, hence the string will be whatever parent scope property "title" is currently set to. Since attribute values are always strings, you will always end up with a string value for this property in the directive's scope when using @. = binds a local/dire...