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How to install a specific version of a ruby gem?
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ruby | 1:1.9.3 | http://ftp.uk.debian.org/debian/ wheezy/main amd64 Packages
ruby | 4.5 | http://ftp.uk.debian.org/debian/ squeeze/main amd64 Packages
Then install it:
$ sudo apt-get install ruby=1:1.9.3
To check what's the current version, run:
$ gem --version # Check f...
How to determine the memory footprint (size) of a variable?
... not definate. It can depend apparently on the php version and possibly on 64/32 bit.
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Why is there no std::stou?
...expected value size in bits expressed in the mask, will make this work for 64-bit longs vs 32-bit ints, but also for 32-bit longs vs 32-bit ints.
In the case of 64-bit longs, ~0xffffffffl will become 0xffffffff00000000 and will thus see if any of the top 32 bits are set. With 32-bit longs, it ~0xf...
What is the maximum float in Python?
...lue of a C long. On some platforms the two values are different: e.g., on 64-bit Windows, sys.maxsize is 2**63-1 and sys.maxint is 2**31-1.
– Mark Dickinson
Aug 14 '10 at 9:29
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Upgrading PHP in XAMPP for Windows?
...t to point out that I have my PHP version installed as x86, therefore the x64 versions won't work. It is needed to download the correct portable version of Xampp x86 sourceforge.net/projects/xampp/files/XAMPP%20Windows/7.3.2 - You can check if you have x86 or x64 installed with phpinfo()
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Generating random strings with T-SQL
... , @first varchar(8000)
declare @step bigint = rand(@seed) * 2147483647;
select @alpha = 'qwertyuiopasdfghjklzxcvbnm'
, @digit = '1234567890'
, @specials = '_@# '
select @first = @alpha + '_@';
set @seed = (rand((@seed+@step)%2147483647)*2147483647);
select...
How do I set the default locale in the JVM?
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lucasmolucasmo
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How to sparsely checkout only one single file from a git repository?
...urce.com
There is an undocumented feature that allows you to download base64-encoded versions of raw files:
curl "https://chromium.googlesource.com/chromium/src/net/+/master/http/transport_security_state_static.json?format=TEXT" | base64 --decode
In other cases check if your Git repository is ...
Is there a NumPy function to return the first index of something in an array?
... Vebjorn LjosaVebjorn Ljosa
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Checking whether a variable is an integer or not [duplicate]
...even if the real part is integral and imaginary part is 0.
(np.int8|16|32|64(5) means that np.int8(5), np.int32(5), etc. all behave identically)
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