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Mixin vs inheritance
...s not intended to be instantiated.
A mixin provides functionality, but is unable to directly use it. A user is intended to use it through a (sub)class.
An abstract base class provides an interface, but without usable functionality. A user is intended to create the functionality called by the inter...
Convert pem key to ssh-rsa format
..._read_PUBKEY(pFile, NULL, NULL, NULL);
if (!pPubKey)
{
printf("Unable to decode public key from the given file: %s\n", ERR_error_string(ERR_get_error(), NULL));
iRet = 3;
goto error;
}
if (EVP_PKEY_type(pPubKey->type) != EVP_PKEY_RSA)
{
printf("Only RSA pub...
Run/install/debug Android applications over Wi-Fi?
...
Thank you it worked. For those who are unable to see the ip address of their android device, go to ` Settings > Wireless > Wi-Fi ` and then long press the wifi which you are connected to. Then select Modify network config check on Show Advance Options and t...
Github (SSH) via public WIFI, port 22 blocked
I'm currently on a public WIFI spot and I'm unable to use SSH (they probably blocked that port). However, I need that connection to do a git push .
...
How do you force Visual Studio to regenerate the .designer files for aspx/ascx files?
...e the designer.
If you switch to Design View, it will show the control as unable to be rendered. Fixing the control (in my case it was an extra quote in the properties) and recompiling should regenerate the designer.
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...
How to hide the title bar for an Activity in XML with existing custom theme
... 08-13 12:47:33.561 E/AndroidRuntime( 9125): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.myapp/com.myapp.SplashActivity}: android.util.AndroidRuntimeException: requestFeature() must be called before adding content
– mobibob
Aug 13 '...
Ruby on Rails. How do I use the Active Record .build method in a :belongs to relationship?
I have been unable to find any documentation on the .build method in Rails (i am currently using 2.0.2).
2 Answers
...
Can PHP cURL retrieve response headers AND body in a single request?
...fc2616/rfc2616-sec14.html (14.20) A server that does not understand or is unable to comply with any of the expectation values in the Expect field of a request MUST respond with appropriate error status. The server MUST respond with a 417 (Expectation Failed) status if any of the expectations cannot...
error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)' — Miss
...bles". After I do the second command, i get the following error: "InnoDB: Unable to lock ./ibdata1, error: 11". I can't find this ./ibdata1 file... InnoDB: Check that you do not already have another mysqld process
– dot
Aug 16 '12 at 18:24
...
Execute a terminal command from a Cocoa app
...g
}
else {
return "--- Error running command - Unable to initialize string from file data ---"
}
}
}
Usage:
let input = "echo hello"
let output = input.runAsCommand()
print(output) // prints "hello"
or just:
print("echo h...