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In plain English, what does “git reset” do?
...ant to keep all the work you've done so you can fix it up and recommit. In order to commit, you'll have to add files to the index again (git add ...).
--soft doesn't touch the index or work tree. All your files are intact as with --mixed, but all the changes show up as changes to be committed with g...
Does bit-shift depend on endianness?
... new value is stored back in memory, which is where the little endian byte order comes into effect again.
Update, thanks to @jww: On PowerPC the vector shifts and rotates are endian sensitive. You can have a value in a vector register and a shift will produce different results on little-endian and...
Can I get the name of the current controller in the view?
... If you have your controller behind a namespace like this: Admin::Orders then controller_name and params[:controller] will be "orders" and "admin/orders" respectively.
– Viktor Fonic
Sep 23 '13 at 8:10
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What's the algorithm to calculate aspect ratio?
...re that's been changed from 16:9 to 5:4 - I still remember the incredibly tall, thin cowboys I used to watch in my youth on television before letter-boxing was introduced. You may be better off having one different image per aspect ratio and just resize the correct one for the actual screen dimensio...
How to find time complexity of an algorithm
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(cont.) This hierarchy would have a height on the order of log N. As for O(N!) my analogies won't likely cut it, but permutations are on that order - it's prohibitively steep, more so than any polynomial or exponential. There are exactly 10! seconds in six weeks but the univ...
How to remove all MySQL tables from the command-line without DROP database permissions? [duplicate]
...re linked with foreign keys so they would have to be dropped in a specific order.
5 Answers
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Best way to strip punctuation from a string
...s working with the same datatype, but the approach in this answer works equally well for both, which is handy.
– Richard J
Jan 16 '15 at 9:35
38
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Print text instead of value from C enum
...sday", /* ... etc ... */ };. You know, in case the days of the week are reordered, or you decide that Monday is the first day of the week.
– Tim Schaeffer
Jul 2 '10 at 20:13
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Checking if a double (or float) is NaN in C++
...nly if f is NaN.
Note that, as some comments below have pointed out, not all compilers respect this when optimizing code.
For any compiler which claims to use IEEE floating point, this trick should work. But I can't guarantee that it will work in practice. Check with your compiler, if in doubt.
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Closing Database Connections in Java
...nnection, you need to explicitly close it by calling its close() method in order to release any other database resources (cursors, handles, etc) the connection may be holding on to.
Actually, the safe pattern in Java is to close your ResultSet, Statement, and Connection (in that order) in a finall...