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Return array in a function
...rgv[]){
int arr[] = { 1,2,3,4,5 };
// arr[0] == 1
// arr[1] == 2 etc
int result = fillarr(arr);
// arr[0] == 10
// arr[1] == 5
return 0;
}
I suggest you might want to consider putting a length into your fillarr function like
this.
int * fillarr(int arr[], int length)
T...
Getting the last element of a list
...ome_list[-1] gets the last element, some_list[-2] gets the second to last, etc, all the way down to some_list[-len(some_list)], which gives you the first element.
You can also set list elements in this way. For instance:
>>> some_list = [1, 2, 3]
>>> some_list[-1] = 5 # Set the l...
Is it smart to replace boost::thread and boost::mutex with c++11 equivalents?
...general) across a vast array of environments, compilers, threading models, etc. When its my choice, I choose boost.
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Instance attribute attribute_name defined outside __init__
...ions in lieu of using exit(1). You get tracebacks, your code is reusable, etc.
class Wizard:
def __init__(self, argv):
self.name,self.magic_ability = self.parse_arguments(argv)
def parse_arguments(self, argv):
assert len(argv) == 2
return argv[0],argv[1]
...
Convert data.frame column format from character to factor
...df, is.character, as.factor)
# select character columns 'char1', 'char2', etc. to factor:
df <- mutate_at(df, vars(char1, char2), as.factor)
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Looking to understand the iOS UIViewController lifecycle
... with the view controller's view. Like add it as a subview, set the frame, etc. It is also called of course when loading from a nib.
– Jason Grandelli
Oct 16 '13 at 13:43
...
JOIN queries vs multiple queries
...ow table. Basically looked like:
$id = mt_rand(1, 50000);
$row = $db->fetchOne("SELECT * FROM table1 WHERE id = " . $id);
$row = $db->fetchOne("SELECT * FROM table2 WHERE other_id = " . $row['other_id']);
vs
$id = mt_rand(1, 50000);
$db->fetchOne("SELECT table1.*, table2.*
FROM tabl...
How do I run IDEA IntelliJ on Mac OS X with JDK 7?
...ave suggested very good solutions but you have to do it manually vi editor etc. Instead you can run this command via your Mac Terminal and you will be good to go :
find /Applications/IntelliJ*/*Contents/*Info.plist -exec sed -i -e 's/string>1.6/string>1.7/' {} \;
Few optional tips:
If ...
git-diff to ignore ^M
... ^M characters no longer appear at the end of lines in git diff, git show, etc.
It appears to leave other settings as-is; for instance, extra spaces at the end of a line still show as errors (highlighted in red) in the diff.
(Other answers have alluded to this, but the above is exactly how to set ...
Why is HttpClient BaseAddress not working?
...got no attention at all, and I never saw the full url in at my breakpoints etc.
– ProfK
Dec 13 '16 at 14:32
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