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Set database from SINGLE USER mode to MULTI USER
...ome innocent system database like master or tempdb in the drop-down in the one window you have left.
– user
Jan 19 '17 at 15:29
...
Simple way to encode a string according to a password?
...d party libraries. I'd recommend something like the Vigenere cipher. It is one of the strongest of the simple ancient ciphers.
Vigenère cipher
It's quick and easy to implement. Something like:
import base64
def encode(key, string):
encoded_chars = []
for i in xrange(len(string)):
...
Why can't I define a default constructor for a struct in .NET?
... goes.)
EDIT: To use your example, what would you want to happen when someone did:
Rational[] fractions = new Rational[1000];
Should it run through your constructor 1000 times?
If not, we end up with 1000 invalid rationals
If it does, then we've potentially wasted a load of work if we're about...
Can I call memcpy() and memmove() with “number of bytes” set to zero?
...ent of an array? Such a pointer could not be legitimately deferenced, but one could safely do some other pointer-ish things like subtract one from it.
– supercat
Nov 20 '11 at 22:19
...
How do I connect to a specific Wi-Fi network in Android programmatically?
...epTxKeyIndex = 0;
conf.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
conf.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP40);
For WPA network you need to add passphrase like this:
conf.preSharedKey = "\""+ networkPass +"\"";
For Open network you need to do this:
conf.all...
Are loops really faster in reverse?
... a test suite so you can run them yourself.
In all cases (unless I missed one in my read) the fastest loop was:
var i = arr.length; //or 10
while(i--)
{
//...
}
share
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improve this answer
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How to pass macro definition from “make” command line arguments (-D) to C source code?
...use $(CFLAGS) in your compile command in the Makefile. As @jørgensen mentioned , putting the variable assignment after the make command will override the CFLAGS value already defined the Makefile.
Alternatively you could set -Dvar=42 in another variable than CFLAGS and then reuse this variable in ...
How to install Java SDK on CentOS?
... After downloading it, try the above command again.
You will see at least one version of Java packages available for download. Depending on when you read this, the lastest available version may be different.
java-1.7.0-openjdk.x86_64
The above package alone will only install JRE. To also install...
How to hash some string with sha256 in Java?
...
SHA-256 isn't an "encoding" - it's a one-way hash.
You'd basically convert the string into bytes (e.g. using text.getBytes(StandardCharsets.UTF_8)) and then hash the bytes. Note that the result of the hash would also be arbitrary binary data, and if you want to...
What's the fuss about Haskell? [closed]
... talking about Haskell when they are among themselves, and here on SO everyone seems to love that language. Being good at Haskell seems somewhat like the hallmark of a genius programmer.
...