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Why do pthreads’ condition variable functions require a mutex?
I’m reading up on pthread.h ; the condition variable related functions (like pthread_cond_wait(3) ) require a mutex as an argument. Why? As far as I can tell, I’m going to be creating a mutex just to use as that argument? What is that mutex supposed to do?
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How do I modify fields inside the new PostgreSQL JSON datatype?
With postgresql 9.3 I can SELECT specific fields of a JSON data type, but how do you modify them using UPDATE? I can't find any examples of this in the postgresql documentation, or anywhere online. I have tried the obvious:
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How to set time zone of a java.util.Date?
I have parsed a java.util.Date from a String but it is setting the local time zone as the time zone of the date object.
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Check if multiple strings exist in another string
How can I check if any of the strings in an array exists in another string?
15 Answers
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What is the point of a “Build Server”? [closed]
I haven't worked for very large organizations and I've never worked for a company that had a "Build Server".
18 Answers
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What is TypeScript and why would I use it in place of JavaScript? [closed]
Can you please describe what the TypeScript language is?
5 Answers
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Meaning of “[: too many arguments” error from if [] (square brackets)
I couldn't find any one simple straightforward resource spelling out the meaning of and fix for the following BASH shell error, so I'm posting what I found after researching it.
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What are dictionary view objects?
In python 2.7, we got the dictionary view methods available.
5 Answers
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Why use JUnit for testing?
Maybe my question is a newbie one, but I can not really understand the circumstances under which I would use junit ?
11 An...
How to split a string, but also keep the delimiters?
I have a multiline string which is delimited by a set of different delimiters:
23 Answers
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