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Is gcc std::unordered_map implementation slow? If so - why?
...!!
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).
I will submit a bug report.....
Update date + one year in mysql
When I want setting numerical value +1 in mysql table, I use e.g.:
3 Answers
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jQuery append() - return appended elements
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edited Feb 18 '15 at 15:33
Jeroen
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How do I revert master branch to a tag in git?
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160
You can do
git checkout master
git reset --hard tag_ABC
git push --force origin master
Plea...
How to limit UITableView row reordering to a section
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181
This implementation will prevent re-ordering outside of the original section like Phil's answe...
Argparse optional positional arguments?
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edited Jan 2 '17 at 8:30
anatoly techtonik
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Diff output from two programs without temporary files
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213
Use <(command) to pass one command's output to another program as if it were a file name. Ba...
Difference between os.getenv and os.environ.get
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edited Jan 13 '17 at 3:53
Tushar
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Generate a random double in a range
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241
To generate a random value between rangeMin and rangeMax:
Random r = new Random();
double rando...
How to remove last n characters from every element in the R vector
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117
Here is an example of what I would do. I hope it's what you're looking for.
char_array = c("...