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How to pass optional arguments to a method in C++?
...g ?
– Swapnil Gupta
Sep 24 '10 at 4:20
void myfunc(int blah, char mode[] = NULL)
– Pramendra Gup...
What does the explicit keyword mean?
...
|
edited Apr 20 '18 at 9:28
Azeem
6,79344 gold badges1717 silver badges3232 bronze badges
a...
What kind of Garbage Collection does Go use?
... on multi-core systems.
– uriel
Oct 20 '11 at 19:25
3
@uriel: Yes, I mentioned this in the 1st it...
String formatting in Python 3
...rmat(self)
"conversion rate: {:.2f}".format(self.goals / self.shots) # '0.20'
"conversion rate: {:.2%}".format(self.goals / self.shots) # '20.45%'
"conversion rate: {:.0%}".format(self.goals / self.shots) # '20%'
"self: {!s}".format(self) # 'Player: Bob'
"self: {!r}".format(self) # '<__main__.P...
UITableView - change section header color
...backgroundColor = UIColor.clearColor()
}
return headerView
}
Updated 2017:
Swift 3:
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView?
{
let headerView = UIView(frame: CGRect(x: 0, y: 0, width: tableView.bounds.size.width, height: 30))
...
The forked VM terminated without saying properly goodbye. VM crash or System.exit called
...tations.
– StartupGuy
Feb 17 '16 at 20:00
7
...
Can you resolve an angularjs promise before you return it?
...
answered Jan 20 '14 at 6:25
h.coatesh.coates
2,67111 gold badge1010 silver badges2020 bronze badges
...
Javascript calculate the day of the year (1 - 366)
... |
edited Oct 8 '17 at 22:20
Koen Peters
12.2k66 gold badges3333 silver badges5555 bronze badges
answere...
Retrieving the last record in each group - MySQL
... WHERE rn = 1;
Below is the original answer I wrote for this question in 2009:
I write the solution this way:
SELECT m1.*
FROM messages m1 LEFT JOIN messages m2
ON (m1.name = m2.name AND m1.id < m2.id)
WHERE m2.id IS NULL;
Regarding performance, one solution or the other can be better, d...
Checking if a string can be converted to float in Python
...imeit()
unittest.main()
On my machine, the output is:
fn sad: 0.220988988876
fn happy: 0.212214946747
.
part sad: 1.2219619751
part happy: 0.754667043686
.
re sad: 1.50515985489
re happy: 1.01107215881
.
try sad: 2.40243887901
try happy: 0.425730228424
.
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