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Convert a byte array to integer in Java and vice versa
...;> 16),
(byte)(value >> 8),
(byte)value };
}
int fromByteArray(byte[] bytes) {
return ByteBuffer.wrap(bytes).getInt();
}
// packing an array of 4 bytes to an int, big endian, minimal parentheses
// operator precedence: <<, &, |
// when operators of equal pre...
/usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.15' not found
...
I'm compiling gcc 4.6 from source, and apparently
sudo make install
didn't catch this one. I dug around and found
gcc/trunk/x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs/libstdc++.so.6.0.15
I copied it in to /usr/lib and redirected libstd...
Tar archiving that takes input from a list of files
...ut comments in mylist.txt .. is there any workaround using some tar option from inside mylist.txt ?
– Stphane
Aug 10 '18 at 10:50
8
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How do I get the application exit code from a Windows command line?
...
If you're running directly from a Windows command line and always seeing 0 returned, see Gary's answer: stackoverflow.com/a/11476681/31629
– Ken
Aug 30 '12 at 13:51
...
How to include a Font Awesome icon in React's render()
...se the react-fontawesome icon library. Here's the link: react-fontawesome
From the NPM page, just install via npm:
npm install --save react-fontawesome
Require the module:
var FontAwesome = require('react-fontawesome');
And finally, use the <FontAwesome /> component and pass in attribut...
How to add leading zeros?
...ne is best depends upon what other formatting you want to do.
The example from the question is quite easy since all the values have the same number of digits to begin with, so let's try a harder example of making powers of 10 width 8 too.
anim <- 25499:25504
x <- 10 ^ (0:5)
paste (and it...
Prevent user from seeing previously visited secured page after logout
...isabled.
Your concrete problem is that the requested page is been loaded from the browser cache instead of straight from the server. This is essentially harmless, but indeed confusing to the enduser, because s/he incorrectly thinks that it's really coming from the server.
You just need to instruc...
How to delete duplicate lines in a file without sorting it in Unix?
...d, or use a wildcard… the 'seen' array will fill up with duplicate lines from ALL the files. If you instead want to treat each file independently, you'll need to do something like for f in *.txt; do gawk -i inplace '!seen[$0]++' "$f"; done
– Nick K9
Jan 17 '1...
Capturing Groups From a Grep RegEx
...pace. It's awkward to escape and you can't use quotes since that forces it from a regex to an ordinary string. The correct way to do it is to use a variable. Quotes can be used during the assignment making things much simpler.
– Paused until further notice.
Oct...
How can I do DNS lookups in Python, including referring to /etc/hosts?
...e latter,
import socket
print(socket.gethostbyname('localhost')) # result from hosts file
print(socket.gethostbyname('google.com')) # your os sends out a dns query
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