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When to use NSInteger vs. int
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You usually want to use NSInteger when you don't know what kind of processor architecture your code might run on, so you may for some reason want the largest possible integer type, which on 32 bit systems is just an int, while on a 64-bit system it's a long.
I'd sti...
Sorting a Python list by two fields
...noted in comment to the main answer above, this is the best (only?) way to do multiple sorts with different sort orders. Perhaps highlight that. Also, your text does not indicate that you sorted descending on second element.
– PeterVermont
Jun 12 '15 at 14:25
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What methods of ‘clearfix’ can I use?
...ch of the below clearfix CSS solutions has its own benefits.
The clearfix does have useful applications but it has also been used as a hack. Before you use a clearfix perhaps these modern css solutions can be useful:
css flexbox
css grid
Modern Clearfix Solutions
Container with overflow: a...
What is dynamic programming? [closed]
... Using memoization, dynamic programming problems can be solved in a top down manner. i.e. calling the function to calculate the final value, and that function in turn calls it self recursively to solve the subproblems. Without it, dynamic programming problems can only be solved in a bottom up way...
How to put the legend out of the plot
... figure. I want the legend to be outside of the box. At the same time, I do not want to change the axes, as the size of the figure gets reduced. Kindly help me for the following queries:
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How to POST JSON Data With PHP cURL?
...of the POST data -- only the value of the "customer" POST field. Instead, do something like this:
$ch = curl_init( $url );
# Setup request to send json via POST.
$payload = json_encode( array( "customer"=> $data ) );
curl_setopt( $ch, CURLOPT_POSTFIELDS, $payload );
curl_setopt( $ch, CURLOPT_HT...
Comma in C/C++ macro
...d >=, macro expansion can't ignore commas inside angle brackets like it does within parentheses. (This is also a problem for square brackets and braces, even though those usually occur as balanced pairs.) You can enclose the macro argument in parentheses:
FOO((std::map<int, int>), map_va...
Can I force pip to reinstall the current version?
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@KeeganQuinn do you think that's what Karan meant by "When upgrading"...? I suppose so. But your clarification certainly helps me.
– The Red Pea
Sep 6 '15 at 18:32
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Best way to parse command line arguments in C#? [closed]
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I would strongly suggest using NDesk.Options (Documentation) and/or Mono.Options (same API, different namespace). An example from the documentation:
bool show_help = false;
List<string> names = new List<string> ();
int repeat = 1;
var p = new OptionSet () ...
Set a default font for whole iOS app?
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Thanks for the response. I was able to get this to work. Do you know if there is a way to specify the font without specifying the font size? I have labels in my app that don't share the same font size.
– Brandon
Jan 26 '12 at 19:10
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