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Red black tree over avl tree
...ees but red-black trees are consistently slower by about 20% in real world tests. Or even 30-40% slower when sequential data is inserted.
So people who have studied red-black trees but not AVL trees tend to choose red-black trees. The primary uses for red-black trees are detailed on the Wikipedia ...
How to convert lazy sequence to non-lazy in Clojure
...alk)
(postwalk identity nested-lazy-thing)
I found this useful in a unit test where I wanted to force evaluation of some nested applications of map to force an error condition.
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Where should signal handlers live in a django project?
....py module file, as I believe this is called as soon as the app starts up (testing with a print statement suggests that it's called even before the settings file is read.)
# /project/__init__.py
import signals
and in signals.py
# /project/signals.py
from django.contrib.auth.signals import user_...
How to declare variable and use it in the same Oracle SQL script?
...ed:
DECLARE x NUMBER;
BEGIN
SELECT PK INTO x FROM table1 WHERE col1 = 'test';
DECLARE y NUMBER;
BEGIN
SELECT PK INTO y FROM table2 WHERE col2 = x;
INSERT INTO table2 (col1, col2)
SELECT y,'text'
FROM dual
WHERE exists(SELECT * FROM table2);
...
Regular expression for exact match of a string
...match exactly 123456 then anchors will help you:
/^123456$/
in perl the test for matching the password would be something like
print "MATCH_OK" if ($input_pass=~/^123456$/);
EDIT:
bart kiers is right tho, why don't you use a strcmp() for this? every language has it in its own way
as a second...
Android update activity UI from service
...binds to the service and receives pressure altitude updates:
public class TestActivity extends AppCompatActivity {
private ContentTestBinding binding;
private ServiceConnection serviceConnection;
private AndroidBmService service;
private Disposable disposable;
@Override
pr...
How to load program reading stdin and taking parameters in gdb?
...
@cardiffspaceman, well, I can't test it with Cygwin - perhaps their gdb version is somehow limited
– maxschlepzig
Mar 15 '12 at 9:57
...
How can I easily fixup a past commit?
...rt call
import sys
# Taken from http://stackoverflow.com/questions/377017/test-if-executable-exists-in python
def which(program):
import os
def is_exe(fpath):
return os.path.exists(fpath) and os.access(fpath, os.X_OK)
fpath, fname = os.path.split(program)
if fpath:
...
How can I find where I will be redirected using cURL?
... throw new Exception('Curl error: ' . curl_error($process));
}
// test for redirection HTTP codes
$code = curl_getinfo($process, CURLINFO_HTTP_CODE);
if ($code == 301 || $code == 302)
{
curl_close($process);
try
{
// go to extract new Location URI
...
Fixed position but relative to container
...x. For some creative out there, this could possibly become a plaything :)
TEST
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