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Swift: declare an empty dictionary
...ou have to be explicit, otherwise you will produce an unusable instance of __NSDictionaryI. Try adding an element to that emptyDict and it will fail at compile time.
– Gabriele Petronella
Jun 4 '14 at 13:34
...
Reading a binary file with python
...ve something to unpack is pretty trivial:
import struct
data = open("from_fortran.bin", "rb").read()
(eight, N) = struct.unpack("@II", data)
This unpacks the first two fields, assuming they start at the very beginning of the file (no padding or extraneous data), and also assuming native byte-or...
What is an abstract class in PHP?
...mpose requirements upon the exhibiting class.
Example below :
class Non_Abstract_Class
{
abstract protected function getValue();
public function printOut() {
echo "Hello how are you?";
}
}
$obj=new Non_Abstract_Class();
$obj->printOut();
//Fatal error: Class Non_Abstract_...
Do regular expressions from the re module support word boundaries (\b)?
...;> x = 'one two three'
>>> y = k.search( x)
>>> y
<_sre.SRE_Match object at 0x100418850>
Also forgot to mention, you should be using raw strings in your code
>>> x = 'one two three'
>>> y = re.search(r"\btwo\b", x)
>>> y
<_sre.SRE_Match obj...
Create directory if it does not exist
...me problem. You can use something like this:
$local = Get-Location;
$final_local = "C:\Processing";
if(!$local.Equals("C:\"))
{
cd "C:\";
if((Test-Path $final_local) -eq 0)
{
mkdir $final_local;
cd $final_local;
liga;
}
## If path already exists
## ...
Create directories using make file
...
This would do it - assuming a Unix-like environment.
MKDIR_P = mkdir -p
.PHONY: directories
all: directories program
directories: ${OUT_DIR}
${OUT_DIR}:
${MKDIR_P} ${OUT_DIR}
This would have to be run in the top-level directory - or the definition of ${OUT_DIR} would h...
Do you use source control for your database items? [closed]
...-
ALTER TABLE migratorjobitems
DROP CONSTRAINT migratorjobitems_destcmaid_fkey;
--
-- Increment the version
UPDATE sys_info
SET value = '8.0.108'
WHERE key = 'DB VERSION';
END TRANSACTION;
EOF8.0.108
fi
if [ $VERSION \< '8.0.109...
Commands executed from vim are not recognizing bash command aliases
...expansion of bash aliases, put your alias definitions in a file, e.g. .bash_aliases and explicitly enable alias expansion in this file:
shopt -s expand_aliases
alias la='ls -la'
Then add this to your .vimrc so the aliases file is actually read each time you run a shell command from within v...
how to make a whole row in a table clickable as a link?
... a class on each row, and decorate the table with a class name of clickable_row (CamelCase is against HTML standards and should be lower case (I had issues with cross browser a few times with this)) and then the jQuery is $('.clickable_row tr').click(function ... But really you should be using data-...
std::shared_ptr thread safety explained
I'm reading http://gcc.gnu.org/onlinedocs/libstdc++/manual/shared_ptr.html and some thread safety issues are still not clear for me:
...