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'printf' vs. 'cout' in C++
...<ctime>
class TimedSection {
char const *d_name;
timespec d_start;
public:
TimedSection(char const *name) :
d_name(name)
{
clock_gettime(CLOCK_REALTIME, &d_start);
}
~TimedSection() {
timespec end;
...
Multiprocessing vs Threading Python [duplicate]
...nthreads]
for thread_class, work_size in input_params:
start_time = time.time()
threads = []
for i in range(nthreads):
thread = thread_class(work_size)
threads.append(thread)
thread.start()
for i,...
Opening port 80 EC2 Amazon web services [closed]
... Also, check your firewall (as nsof stated). RHEL has iptables started by default. Windows has windows FW. Turn them off and see if that was the problem. If it was, then edit the firewall to allow 80/443 and restart
– Andrew Backer
Feb 28 '14 at ...
What is “lifting” in Haskell?
...e have liftFoo3, liftFoo4 and so on. However this is often not necessary.
Start with the observation
liftFoo1 :: (a -> b) -> Foo a -> Foo b
But that is exactly the same as fmap. So rather than liftFoo1 you would write
instance Functor Foo where
fmap f foo = ...
If you really want ...
How to highlight cell if value duplicate in same column for google spreadsheet?
...rn its content. In this case, the current cell's content. Then back to the start, COUNTIF() will test every cell in the range against ours, and return the count.
The last step is making our formula return a boolean, by making it a logical expression: COUNTIF(...) > 1. The > 1 is used because ...
Is Tomcat running?
...a pid file may not exist, it depends on the environment and how tomcat was started. See this answer to create a pid file on startup.
– Alberto de Paola
Sep 25 '16 at 1:59
...
Android studio logcat nothing to show
...
Restarting logcat helps me always.
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What is the difference between Non-Repeatable Read and Phantom Read?
... @anir yes inserts and deletes are included in dirty reads. Example: start a transaction, insert 2 of 100 invoice lines on connection a, now connection b reads those 2 lines before the trx is committed and before the other 98 lines are added, and so doesn't include all info for the invoice. Th...
Convert integer into its character equivalent, where 0 => a, 1 => b, etc
...pqrstuvwxyz
^ ^
n n+10
By offsetting by 10 the characters start at a instead of 0.
Not entirely sure about how fast running the two different examples client-side would compare though.
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Convert JSON string to dict using Python
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When I started using json, I was confused and unable to figure it out for some time, but finally I got what I wanted
Here is the simple solution
import json
m = {'id': 2, 'name': 'hussain'}
n = json.dumps(m)
o = json.loads(n)
p...