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Is gcc std::unordered_map implementation slow? If so - why?
...on: it is a Problem of gcc-4.7!!
With gcc-4.7
inserts: 37728
get : 2985
With gcc-4.6
inserts: 2531
get : 1565
So std::unordered_map in gcc-4.7 is broken (or my installation, which is an installation of gcc-4.7.0 on Ubuntu - and another installation which is gcc 4.7.1 on debian testing)....
Copy table without copying data
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15
@TimoHuovinen: Perhaps create table NewTable like OldTable is an option for you. Link copied from deleted answer.
– A...
Why does pylint object to single character variable names?
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Using usort in php with a class private function
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5 Answers
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How can I filter a Django query with a list of values?
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562
From the Django documentation:
Blog.objects.filter(pk__in=[1, 4, 7])
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How do I insert datetime value into a SQLite database?
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154
The format you need is:
'2007-01-01 10:00:00'
i.e. yyyy-MM-dd HH:mm:ss
If possible, however...
How to make maven build platform independent?
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edited May 15 '15 at 10:22
Ripon Al Wasim
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How to set child process' environment variable in Makefile
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158
Make variables are not exported into the environment of processes make invokes... by default. ...
Two-dimensional array in Swift
...ts):
// 2 dimensional array of arrays of Ints set to 0. Arrays size is 10x5
var arr = Array(count: 3, repeatedValue: Array(count: 2, repeatedValue: 0))
// ...and for Swift 3+:
var arr = Array(repeating: Array(repeating: 0, count: 2), count: 3)
Change element at position
arr[0][1] = 18
OR
let...
PHP: Count a stdClass object
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256
The problem is that count is intended to count the indexes in an array, not the properties on a...