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When should one use a spinlock instead of mutex?
I think both are doing the same job,how do you decide which one to use for synchronization?
6 Answers
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What's the difference between a single precision and double precision floating point operation?
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CASCADE DELETE just once
I have a Postgresql database on which I want to do a few cascading deletes. However, the tables aren't set up with the ON DELETE CASCADE rule. Is there any way I can perform a delete and tell Postgresql to cascade it just this once? Something equivalent to
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Sort rows in data.table in decreasing order on string key `order(-x,v)` gives error on data.table 1.
Let's say I have the following data.table in R :
3 Answers
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How does LMAX's disruptor pattern work?
I am trying to understand the disruptor pattern . I have watched the InfoQ video and tried to read their paper. I understand there is a ring buffer involved, that it is initialized as an extremely large array to take advantage of cache locality, eliminate allocation of new memory.
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How to port data-only volumes from one host to another?
As described in the Docker documentation on Working with Volumes there is the concept of so-called data-only containers, which provide a volume that can be mounted into multiple other containers, no matter whether the data-only container is actually running or not.
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How to print the values of slices
I want to see the values which are in the slice. How can I print them?
7 Answers
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Accessing inactive union member and undefined behavior?
I was under the impression that accessing a union member other than the last one set is UB, but I can't seem to find a solid reference (other than answers claiming it's UB but without any support from the standard).
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How to initialize a private static const map in C++?
I need just dictionary or associative array string => int .
10 Answers
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month name to month number and vice versa in python
I am trying to create a function that can convert a month number to an abbreviated month name or an abbreviated month name to a month number. I thought this might be a common question but I could not find it online.
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