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Reset C int array to zero : the fastest way?
...int, long long int or unsigned long long int, what is the fastest way to reset all its content to zero (not only for initialization but to reset the content several times in my program)? Maybe with memset?
...
What is in your Mathematica tool bag? [closed]
...items that have that tag. The items retain their original order, so if you set h = #1& then you get an unsorted Union, like in the examples for Reap. But, it can be used for secondary processing.
As an example of its utility, I've been working with Wannier90 which outputs the spatially depende...
Foreign Key to non-primary key
...erformance (as noted above). Does anyone foresee any problems with such a setup?
– Daniel Macias
Oct 19 '15 at 5:54
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How to check if remote branch exists on a given remote repository?
...ds git@github.com:user/repo.git branch-name | wc -l
Alternatively you can set --exit-code flag on git ls-remote which will return exit code 2 in case no matching refs are found. This is the most idiomatic solution. The result can be checked directly in a shell test or by checking the status varia...
Read lines from a file into a Bash array [duplicate]
...ho "${XYZ[5]}"
sync:x:5:0:sync:/sbin:/bin/sync
Also note that you may be setting the array just fine but reading it wrong - be sure to use both double-quotes "" and braces {} as in the example above
Edit:
Please note the many warnings about my answer in comments about possible glob expansion, ...
Quicksort: Choosing the pivot
...requirements. Choosing a pivot at random makes it harder to create a data set that generates O(N^2) performance. 'Median-of-three' (first, last, middle) is also a way of avoiding problems. Beware of relative performance of comparisons, though; if your comparisons are costly, then Mo3 does more co...
Remove files from Git commit
...anges done to them. This can be done like Paritosh Singh suggested:
git reset --soft HEAD^
or
git reset --soft HEAD~1
Then reset the unwanted files in order to leave them out from the commit:
git reset HEAD path/to/unwanted_file
Now commit again, you can even re-use the same commit message...
Hidden Features of Visual Studio (2005-2010)?
...
With VB key settings, Shift-F2 also does a Go To Definition.
– Ryan Lundy
Dec 3 '09 at 18:54
1
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How to save a Python interactive session?
...an change it - see readline docs).
#
# Store the file in ~/.pystartup, and set an environment variable to point
# to it: "export PYTHONSTARTUP=/home/user/.pystartup" in bash.
#
# Note that PYTHONSTARTUP does *not* expand "~", so you have to put in the
# full path to your home directory.
import ate...
Command line progress bar in Java
...
...
pb.stepTo(n); // step directly to n
...
pb.maxHint(n);
// reset the max of this progress bar as n. This may be useful when the program
// gets new information about the current progress.
// Can set n to be less than zero: this means that this progress bar would become
// indefin...