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What does |= (ior) do in Python?
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53
|= performs an in-place+ operation between pairs of objects. In particular, between:
sets: a u...
Why shouldn't I use PyPy over CPython if PyPy is 6.3 times faster?
I've been hearing a lot about the PyPy project. They claim it is 6.3 times faster than the CPython interpreter on their site .
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What are some uses of template template parameters?
...ates on this wrt C++0x?
– amit
Jan 13 '11 at 5:19
Well, you don't have to provide allocator. What's important is that ...
SQL Inner-join with 3 tables?
I'm trying to join 3 tables in a view; here is the situation:
12 Answers
12
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How do I move a single folder from one Subversion repository to another repository?
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183
If you have access the repository itself (not a working copy), you should be able to dump the cu...
Modulo operation with negative numbers
... sense, logically. Right?
Let's see what this leads to:
Example A. 5/(-3) is -1
=> (-1) * (-3) + 5%(-3) = 5
This can only happen if 5%(-3) is 2.
Example B. (-5)/3 is -1
=> (-1) * 3 + (-5)%3 = -5
This can only happen if (-5)%3 is -2
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Regular expression for letters, numbers and - _
... to show how you can use this pattern:
<?php
$arr = array(
'screen123.css',
'screen-new-file.css',
'screen_new.js',
'screen new file.css'
);
foreach ($arr as $s) {
if (preg_match('/^[\w.-]*$/', $s)) {
print "$s is a match\n";
} else {
print "$s is NO match!!!\n";
};
}
?&...
std::string formatting like sprintf
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349
You can't do it directly, because you don't have write access to the underlying buffer (until ...
Setting PATH environment variable in OSX permanently
...s) too.
– Amudhan
Dec 14 '15 at 10:03
This worked in EL Capitan. Close all the terminals and open a new terminal to ch...