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Generating random integer from a range
...rge linear-feedback shift
register. The algorithm operates on a
19,937 bit seed, stored in an
624-element array of 32-bit unsigned
integers. The value 2^19937-1 is a
Mersenne prime; the technique for
manipulating the seed is based on an
older "twisting" algorithm -- hence
the name "M...
Repository access denied. access via a deployment key is read-only
...ed a deployment key instead of an SSH Key.
– user840210
Apr 11 '13 at 8:42
27
Yes! Thank you for ...
Your content must have a ListView whose id attribute is 'android.R.id.list'
...
answered Nov 22 '14 at 10:13
VickyVicky
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Efficient SQL test query or validation query that will work across all (or most) databases
...
After a little bit of research along with help from some of the answers here:
SELECT 1
H2
MySQL
Microsoft SQL Server (according to NimChimpsky)
PostgreSQL
SQLite
SELECT 1 FROM DUAL
Oracle
SELECT 1 FROM any_existing_table WHERE 1=0
or
...
How can you use optional parameters in C#?
...at the SO guys originally had in mind, a Wiki mentality, but everyone is a bit too afraid to edit someone else's answer.
– Rowan
Mar 2 '11 at 15:26
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Bitwise operation and usage
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Bitwise operators are operators that work on multi-bit values, but conceptually one bit at a time.
AND is 1 only if both of its inputs are 1, otherwise it's 0.
OR is 1 if one or both of its inputs are 1, otherwise it's 0.
X...
Remove CSS class from element with JavaScript (no jQuery) [duplicate]
...
Edit
Okay, complete re-write.
It's been a while, I've learned a bit and the comments have helped.
Node.prototype.hasClass = function (className) {
if (this.classList) {
return this.classList.contains(className);
} else {
return (-1 < this.className.indexOf(clas...
Are the shift operators () arithmetic or logical in C?
...those readers unfamiliar with the difference, a "logical" right shift by 1 bit shifts all the bits to the right and fills in the leftmost bit with a 0. An "arithmetic" shift leaves the original value in the leftmost bit. The difference becomes important when dealing with negative numbers.)
When shi...
What is the difference between UTF-8 and Unicode?
...r, or code point.
Computers deal with such numbers as bytes... skipping a bit of history here and ignoring memory addressing issues, 8-bit computers would treat an 8-bit byte as the largest numerical unit easily represented on the hardware, 16-bit computers would expand that to two bytes, and so fo...
Executing command line programs from within python [duplicate]
...8
dF.dF.
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