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What happens if I define a 0-size array in C/C++?
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An array cannot have zero size.
ISO 9899:2011 6.7.6.2:
If the expression is a constant expression, it shall have a value greater than zero.
The above text is true both for a plain array (paragraph 1). For a VLA (variable length array), the behavior is undefine...
Can I export a variable to the environment from a bash script without sourcing it?
...ble, print commands that will set the environment variable:
$ cat set-vars2.sh
#!/bin/bash
echo export FOO=BAR
$ eval "$(./set-vars2.sh)"
$ echo "$FOO"
BAR
A third approach is to have a script that sets your environment variable(s) internally and then invokes a specified command with that environ...
How do I use brew installed Python as the default Python?
... try to switch to Homebrew (after using fink and macport) on Mac OS X 10.6.2. I have installed python 2.7 with
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NoSQL Use Case Scenarios or WHEN to use NoSQL [closed]
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eclipse won't start - no java virtual machine was found
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Embedding JavaScript engine into .NET [closed]
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Loop through each row of a range in Excel
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Rachel Hettinger
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answered Sep 23 '09 at 0:19
MikeMike
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{version} wildcard in MVC4 Bundle
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edited Oct 23 '16 at 7:48
Tomas Kubes
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Insert image after each list item
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jimyijimyi
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Efficiently test if a port is open on Linux?
...>&6
cat <&6
I'm using 6 as the file descriptor because 0,1,2 are stdin, stdout, and stderr. 5 is sometimes used by Bash for child processes, so 3,4,6,7,8, and 9 should be safe.
As per the comment below, to test for listening on a local server in a script:
exec 6<>/dev/tcp/127...