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Can a C++ enum class have methods?
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And the compiler will prevent things like:
Fruit f = 1; // Compile time error.
You could easily add methods such that:
Fruit f("Apple");
and
f.ToString();
can be supported.
share
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improv...
How do you manually execute SQL commands in Ruby On Rails using NuoDB
... @bonafernando, Your database might start throwing "Too many connections" errors if you have code that uses ActiveRecord::Base.connection without calling ActiveRecord::Base.clear_active_connections!. See api.rubyonrails.org/v5.2/classes/ActiveRecord/…
– eremite
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.htaccess mod_rewrite - how to exclude directory from rewrite rule
...ob, I put this line right after "RewriteBase /", and now I am getting "500 Error - Internal Server Error"
– Kelvin
Dec 4 '09 at 17:42
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When should one use a 'www' subdomain?
... you are just throwing your traffic away to the browers search engine (DNS Error)
Actually it is amazing how many domains out there, especially amongst the top 100, correctly resolve for www.domainname.com but not domainname.com
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Visual Studio TFS shows unchanged files in the list of pending changes
... prompt of the Developer Command Prompt (and getting a workspace not found error), before navigating to the workspace folder and executing there. If I go straight to the correct folder, the command is not found. (I wouldn't mind a solution to that issue in itself.)
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Guards vs. if-then-else vs. cases in Haskell
...turn ()
handle (ExitFailure code)
| code < 0 = putStrLn . ("internal error " ++) . show . abs $ code
| otherwise = putStrLn . ("user error " ++) . show $ code
BTW. As a style tip, always make a newline after a = or before a | if the stuff after the =/| is too long for one line, o...
How do you get current active/default Environment profile programmatically in Spring?
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This line gives this error: Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'spring.profiles.active' in value "${spring.profiles.active}"
– zygimantus
Jan 4 '18 at 9:07
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Save classifier to disk in scikit-learn
...t)
>>> clf.score(digits.data, digits.target) # evaluate training error
0.9526989426822482
>>> filename = '/tmp/digits_classifier.joblib.pkl'
>>> _ = joblib.dump(clf, filename, compress=9)
>>> clf2 = joblib.load(filename)
>>> clf2
SGDClassifier(alpha=0....
jQuery table sort
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I'm getting this error Error: illegal character the html is not exactly the same, I also have thead and tboy, can you help me with this please?
– pahnin
Jul 12 '12 at 13:00
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What is this crazy C++11 syntax ==> struct : bar {} foo {};?
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struct foo { virtual void f() = 0; }; // normal abstract type
foo obj;
// error: cannot declare variable 'obj' to be of abstract type 'foo'
Let's also recall that we can instantiate the UDT at the same time that we define it:
struct foo { foo() { cout << "!"; } }; // just a defini...