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difference between fork and branch on github
...k a project that's hosted on github. Do I fork all the branches? How do I know which branch my fork is based on? In other words which branch will be downloaded to my PC?
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Rails 3 - can't install pg gem
...pplications/Postgres.app/Contents/MacOS/bin:$PATH"
gem install pg should now work. (This is what worked for me.)
Note New versions path looks like:
/Applications/Postgres.app/Contents/Versions/<version>/bin
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Appending a vector to a vector [duplicate]
...o use reserve if you are repeatedly inserting into a vector for which you know the final size, and that size is large. Otherwise, I'd let the STL grow your vector as needed.
– moodboom
Sep 10 '13 at 16:24
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How do you run a crontab in Cygwin on Windows?
...as yourself? (yes/no) no
Do you want to start the cron daemon as a service now? (yes/no) yes
Local users can now define their scheduled tasks like this (crontab will start your favourite editor):
$ crontab -e # edit your user specific cron-table HOME=/home/foo
PATH=/usr/local/bin:/usr/bin:/bin:$...
Get local IP address
... is right - if there are more than 1 IP address given to you, you need to know which network you're using. Guessing by taking the first or last is not the correct solution.
– gbjbaanb
Sep 4 '13 at 9:11
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What would cause an algorithm to have O(log n) complexity?
My knowledge of big-O is limited, and when log terms show up in the equation it throws me off even more.
6 Answers
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Significant new inventions in computing since 1980
...e form before, but the combination was obvious only in hindsight.
And I know for sure that you are using it right now.
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edited Jan 11 '09 at 16:06
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What is :: (double colon) in Python when subscripting sequences?
I know that I can use something like string[3:4] to get a substring in Python, but what does the 3 mean in somesequence[::3] ?
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Calculate total seconds in PHP DateInterval
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Could you not compare the time stamps instead?
$now = new DateTime('now');
$diff = $date->getTimestamp() - $now->getTimestamp()
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Remove spaces from std::string in C++
...ithm remove_if and isspace:
remove_if(str.begin(), str.end(), isspace);
Now the algorithm itself can't change the container(only modify the values), so it actually shuffles the values around and returns a pointer to where the end now should be. So we have to call string::erase to actually modify ...