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Published on 2009-05-06T01:27:38Z
Indexed on
2010/04/16
10:13 UTC
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What is the Ruby spaceship operator? Is the operator implemented by any other languages?
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Ok I followed the steps for setting up ruby and rails on my Vista machine and I am having a problem connecting to the database.
Contents of database.yml
development:
adapter: sqlserver
database: APPS_SETUP
Host: WindowsVT06\SQLEXPRESS
Username: se
Password: paswd
Run rake db:migrate…
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My application requires to keep large data objects in session. There are like 3-4 data objects each created by parsing a csv containing 150 X 20 cells having strings of 3-4 characters.
My application shows this error- "marshal data too short".
I tried this-
Deleting the old session table.
Deleting…
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I don't know is it my mistake or no. So i have that code:
<code>
post '/singin/get_token' do
content_type :xml
puts request.body.read
puts xmlRequest
xmlRequest = REXML::Document.new(request.body.read)
...
</code>
And when i post something like that:
<code>
<?xml…
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reading around the various ruby install tutorials it's required to change path from /usr/bin/ruby to /usr/local/bin/ruby but i cant seem to be able to do it. Ultimately i want to install Ruby 1.9.2, should i uninstall 1.8.7 or what? i tried to install Ruby 1.9.2 with macports, the installation seemed…
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i am getting a strange bundler error when running
bundle pack
with bundler 0.9.12
any ideas? (see pastie for a better formatted code: http://pastie.org/881328 )
/opt/ruby-enterprise-1.8.7-2010.01/lib/ruby/site_ruby/1.8/rubygems/package/tar_input.rb:49:in `initialize': not in gzip format (Zlib::GzipFile::Error)
…
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boost::operators automatically defines operators like + based on manual implementations like += which is very useful. To generate those operators for T, one inherits from boost::operators<T> as shown by the boost example:
class MyInt : boost::operators<MyInt>
I am familiar with the CRTP…
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When you use the comparison operators in SQL with the Where clause, you can remove the columns with null values.
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When you use the comparison operators in SQL with the Where clause, you can remove the columns with null values.
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I have an enumerated type that I would like to define the , <, =, and <= operators for. I know that these operators are implictly created on the basis of the enumerated type (as per the documentation) but I would like to explictly define these operators (for clarity, for control, to know how…
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I'm creating a stack oriented virtual machine, and so I started learning Forth for a general understanding about how it would work. Then I shortlisted the essential stack manipulation operations I would need to implement in my virtual machine:
drop ( a -- )
dup ( a -- a a )
swap ( a b -- b a )
rot…
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