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What is the difference between atomic and critical in OpenMP?
...ite right. I don't think that statement was ever correct, I'll correct it now.
– Jonathan Dursi
Jun 27 '16 at 14:04
A...
How many levels of pointers can we have?
...evels where this can terminate.
struct list { struct list *next; ... };
now you can have list->next->next->next->...->next. This is really just multiple pointer indirections: *(*(..(*(*(*list).next).next).next...).next).next. And the .next is basically a noop when it's the first m...
Best implementation for hashCode method for a collection
...on to equals. A library implementation does not claim to absolve you from knowing what the characteristics of a correct hashCode implementation are - these libraries make it easier for you to implement such a conforming implementation for the majority of cases where equals is overriden.
...
Accessing an array out of bounds gives no error, why?
...ime you run the program. Or that it hasn't overwritten essential data even now, and you just haven't encountered the problems, that it is going to cause — yet.
As for why there is no bounds checking, there are a couple aspects to the answer:
An array is a leftover from C. C arrays are about as ...
Does Python have a package/module management system?
... I searched the internet for 20 minutes and this answer was nowhere. Thank you so much. Also, I have serious doubts about using python if the documentation is this bad...this should be on the Python main page or accesible from google or something
– Chris J
...
What Computer Science concepts should I know? [closed]
...
Take a look at this blog post by Steve Yegge (formerly of Amazon, now at Google):
The Five Essential Phone Screen Questions
It goes into some detail about the the five most important concepts that developers should be required to know:
Basic programming (including recursion, file I/O,...
How to get the sizes of the tables of a MySQL database?
...better that a kilobyte be defined on the decimal system. The IEC standard now calls the base 2 kilobyte (1024 bytes) a kibibyte (KiB). At any rate, MySQL doesn't know, so if you want IEC decimal kilobytes, divide by 1000.
– russellpierce
Sep 17 '15 at 11:38
...
Nginx Different Domains on Same IP
... www.domain1.com domain1.com; and server_name www.domain2.com domain2.com; now has the correct page for each site displaying when those addresses are used.
– Steve HHH
Dec 14 '12 at 17:12
...
PostgreSQL disable more output
... to use the stream number you'd write
psql db -f sql.sql 1> /dev/null
Now if you want to suppress stderror (stream number 2), you'd use
psql db -f sql.sql 2> /dev/null
You could also redirect one stream to another, for example stderror to stdout, which is useful if you want to save all out...
How to split a column into two columns?
...ing the power of the str.extract() method.
But for a simple split over a known separator (like, splitting by dashes, or splitting by whitespace), the .str.split() method is enough1. It operates on a column (Series) of strings, and returns a column (Series) of lists:
>>> import pandas as p...