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Why do we copy then move?
...st-optimal version, but 2 times less code.
And if you are taking say 2 to 10 arguments, the reduction in code is exponential -- 2x times less with 1 argument, 4x with 2, 8x with 3, 16x with 4, 1024x with 10 arguments.
Now, we can get around this via perfect forwarding and SFINAE, allowing you to w...
Flatten nested dictionaries, compressing keys
...ct(items)
>>> flatten({'a': 1, 'c': {'a': 2, 'b': {'x': 5, 'y' : 10}}, 'd': [1, 2, 3]})
{'a': 1, 'c_a': 2, 'c_b_x': 5, 'd': [1, 2, 3], 'c_b_y': 10}
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Why should I not wrap every block in “try”-“catch”?
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edited Oct 28 '10 at 3:17
answered Apr 29 '10 at 12:45
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jQuery.inArray(), how to use it right?
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Of course, you could always define your own, more intuitive, function like $.isInArray = function(test,array) { return $.inArray(test, arr...
How to change the foreign key referential action? (behavior)
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answered Jul 29 '10 at 3:55
pascalpascal
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Why is transposing a matrix of 512x512 much slower than transposing a matrix of 513x513?
...s 4 lines, each holding 64 bytes. We first attempt to read the address 0x2710, which goes in set 28. And then we also attempt to read addresses 0x2F00, 0x3700, 0x3F00 and 0x4700. All of these belong to the same set. Before reading 0x4700, all lines in the set would have been occupied. Reading that m...
Difference between array_push() and $array[] =
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answered Jan 9 '13 at 10:13
BenMBenM
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How to kill/stop a long SQL query immediately?
...o cancel it via the red cancel button, but it has not stopped for the past 10 minutes. It usually stops within 3 minutes.
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Number of rows affected by an UPDATE in PL/SQL
I have a PL/SQL function (running on Oracle 10g) in which I update some rows. Is there a way to find out how many rows were affected by the UPDATE? When executing the query manually it tells me how many rows were affected, I want to get that number in PL/SQL.
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Display help message with python argparse when script is called without any arguments
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edited Feb 26 '18 at 20:10
answered Oct 28 '10 at 12:23
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