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How do you calculate log base 2 in Java for integers?
... x where (int)(Math.log(x)/Math.log(2)) fails (just because there are only 32 "dangerous" values), but it does not mean that it will work the same way on any PC.
The usual trick here is using "epsilon" when rounding. Like (int)(Math.log(x)/Math.log(2)+1e-10) should never fail. The choice of this "e...
What is the LD_PRELOAD trick?
...selinux.so.1.
> ldd /bin/ls
...
libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007f3927b1d000)
libacl.so.1 => /lib/x86_64-linux-gnu/libacl.so.1 (0x00007f3927914000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f392754f000)
libpcre.so.3 => /l...
Setting Windows PowerShell environment variables
..., <host-name>_profile.ps1 just by the specified host. For PowerShell.exe (console host), this is Microsoft.PowerShell_profile.ps1.
– Richard
Apr 4 '09 at 14:44
11
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Using FileSystemWatcher to monitor a directory
... of 1 GB for example. The file may be created by another program (Explorer.exe copying it from somewhere) but it will take minutes to finish that process. The event is raised at creation time and you need to wait for the file to be ready to be copied.
You can wait for a file to be ready by using t...
How does java do modulus calculations with negative numbers?
Am I doing modulus wrong? Because in Java -13 % 64 is supposed to evaluate to -13 but I get 51 .
14 Answers
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How do I find the MySQL my.cnf location
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32
You can use :
locate my.cnf
whereis my.cnf
find . -name my.cnf
...
How can I setup & run PhantomJS on Ubuntu?
... https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-1.9.7-linux-x86_64.tar.bz2
sudo tar xjf phantomjs-1.9.7-linux-x86_64.tar.bz2
sudo ln -s /usr/local/share/phantomjs-1.9.7-linux-x86_64/bin/phantomjs /usr/local/share/phantomjs
sudo ln -s /usr/local/share/phantomjs-1.9.7-linux-x86_64/bin/phant...
“#include” a text file in a C program as a char[]
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answered Jul 29 '14 at 17:32
kayahrkayahr
17.2k2424 gold badges8888 silver badges135135 bronze badges
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How to retrieve a module's path?
...ect to get the name of the current file too; see stackoverflow.com/a/50905/320036
– z0r
Sep 24 '13 at 4:57
6
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Copy all files and folders using msbuild
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I'm kinda new to MSBuild but I find the EXEC Task handy for situation like these. I came across the same challenge in my project and this worked for me and was much simpler. Someone please let me know if it's not a good practice.
<Target Name="CopyToDeployFolde...