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When do I use fabs and when is it sufficient to use std::abs?
I assume that abs and fabs are behaving different when using math.h . But when I use just cmath and std::abs , do I have to use std::fabs or fabs ? Or isn't this defined?
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Store password in TortoiseHg
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@max 1) Maybe true in theory, but OP specifically stated he's using an auto-generated password 2) version control stops this, you can see all changes that were checked in, how could this be an issue? 3) if someone has access to plaintext passwords stored on your com...
How do I remove the Devise route to sign up?
...t.
The original question was :
Is there any good way to remove a specific route (the delete route)
from Rails?
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Use basic authentication with jQuery and Ajax
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Problem...If the credentials I pass fail, in Chrome the user is then presented with a dialog to enter username/pwd again. How can I prevent this 2nd dialog from appearing if the credentials fail?
– David
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jQuery How to Get Element's Margin and Padding?
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Don't pull it out like this. What if one is auto or 2% or inherit?
– Lightness Races in Orbit
Sep 14 '11 at 18:01
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Multi-line commands in GHCi
...xample, the following is sufficient:
Prelude> let addTwo x y = x + y
If you really want a definition with a type signature, or your definition spans over multiple lines, you can do this in ghci:
Prelude> :{
Prelude| let addTwo :: Int -> Int -> Int
Prelude| addTwo x y = x + y
Pre...
How to test which port MySQL is running on and whether it can be connected to?
... port, do this:
netstat -tln
You should see a line that looks like this if mysql is indeed listening on that port.
tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN
Port 3306 is MySql's default port.
To connect, you just have to use whatever client you r...
ActiveRecord, has_many :through, and Polymorphic Associations
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There is a known issue with Rails 3.1.1 that breaks this functionality. If you are having this problem first try upgrading, it's been fixed in 3.1.2
You're so close. The problem is you're misusing the :source option. :source should points to the polymorphic belongs_to relationship. Then all you ...
How do I disable directory browsing?
...t .htaccess might by turned off. Please check the AllowOverride Directive. If it's set to None, then .htaccess is turned off. You can turn it on by setting AllowOverride All. To be more precise, All means all Apache Directives.
– Julian
May 31 '18 at 9:59
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CSS opacity only to background color, not the text on it? [duplicate]
... Yes, using rgba() works in most cases, but it would be nice if there was a "background-opacity:" property in css, because when the "background-color:" is set dynamically (on the fly) as an input to a settings function in an admin appearance panel, which has been coded to use only rgb(...