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Get Image Height and Width as integer values?
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@poke: are you really 100% sure?
– Sarfraz
Feb 18 '10 at 5:04
5
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Modulo operation with negative numbers
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C99 requires that when a/b is representable:
(a/b) * b + a%b shall equal a
This makes 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...
Is Using .NET 4.0 Tuples in my C# Code a Poor Design Decision?
...The consumer (not you) has to either guess or look up documentation, especially for things like Tuple<int, int>.
I would use them for private/internal members, but use result classes for public/protected members.
This answer also has some info.
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Does .NET have a way to check if List a contains all items in List b?
...s easy:
public class ListHelper<T>
{
public static bool ContainsAllItems(List<T> a, List<T> b)
{
return !b.Except(a).Any();
}
}
This checks whether there are any elements in b which aren't in a - and then inverts the result.
Note that it would be slightly mo...
Cell spacing in UICollectionView
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This is a much better answer. Take a look at the callbacks you can adjust in the UICollectionViewDelegateFlowLayout and you can see how this can be tweaked.
– cynistersix
Dec 17 '14 at 2:52
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How to capture Curl output to a file?
...if an old one exists).
curl -K myconfig.txt >> output.txt
Appends all output you receive to the specified file.
Note: The -K is optional.
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Official reasons for “Software caused connection abort: socket write error”
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@rustyx All three sources cited here state that it is produced by ACK failures. If you have a source for your own claim please cite it.
– Marquis of Lorne
May 27 '15 at 5:52
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ActiveRecord: size vs count
...l valid.
You'll adapt the function you use depending on your needs.
Basically:
if you already load all entries, say User.all, then you should use length to avoid another db query
if you haven't anything loaded, use count to make a count query on your db
if you don't want to bother with these con...
What use is find_package() if you need to specify CMAKE_MODULE_PATH anyway?
...e. Now the software has a few dependencies. I compiled them myself and installed them on my system.
4 Answers
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rails + MySQL on OSX: Library not loaded: libmysqlclient.18.dylib
....18.dylib /usr/lib/libmysqlclient.18.dylib
There are many blogs with install_name_tool, which won't work for me because I'm on OSX Lion:
sudo install_name_tool -change libmysqlclient.18.dylib /usr/local/mysql/lib/libmysqlclient.18.dylib /usr/local/bin/indexer
sudo install_name_tool -change libmys...