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Reading GHC Core
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A tip: If you don't care about type annotations and coercions use -ddump-simpl together with the -dsuppress-all option. The Core output should be much more readable.
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How can I strip first X characters from string using sed?
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This doesn't seem to work, and if it does, can you explain how
– Alexander Mills
Jul 3 '19 at 3:29
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Reset PHP Array Index
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If you want to reset the key count of the array for some reason;
$array1 = [
[3] => 'Hello',
[7] => 'Moo',
[45] => 'America'
];
$array1 = array_merge($array1);
print_r($array1);
Output:
Array(
[0] =>...
php execute a background process
...d to $pidfile.
That lets you easily monitor what the process is doing and if it's still running.
function isRunning($pid){
try{
$result = shell_exec(sprintf("ps %d", $pid));
if( count(preg_split("/\n/", $result)) > 2){
return true;
}
}catch(Exception ...
How do I install g++ for Fedora?
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g++ is like an aditional for gcc, so if you want g++ the package you need is gcc-c++, try it...
– Hola Soy Edu Feliz Navidad
Oct 18 '12 at 10:56
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How to convert a PIL Image into a numpy array?
...gt;>> pix = numpy.array(pic)
although the resulting array is in a different format than yours (3-d array or rows/columns/rgb in this case).
Then, after you make your changes to the array, you should be able to do either pic.putdata(pix) or create a new image with Image.fromarray(pix).
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Convert hex string to int in Python
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Without the 0x prefix, you need to specify the base explicitly, otherwise there's no way to tell:
x = int("deadbeef", 16)
With the 0x prefix, Python can distinguish hex and decimal automatically.
>>> print int("0xdeadbeef", 0)
3735928559
>>> ...
Rank items in an array using Python/NumPy, without sorting array twice
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Note that if numbers are repeated in your input array (eg. [4,2,7,1,1]) the output will rank those numbers based on their array position ([3,2,4,0,1])
– rcoup
Jun 8 '11 at 1:53
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What is the use of the square brackets [] in sql statements?
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The brackets are required if you use keywords or special chars in the column names or identifiers. You could name a column [First Name] (with a space)--but then you'd need to use brackets every time you referred to that column.
The newer tools add th...
Convert String array to ArrayList [duplicate]
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@Keale If words is an array of strings, then, yes.
– Nicolai S
Oct 22 '15 at 22:06
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