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What is move semantics?
...:
#include <cstring>
#include <algorithm>
class string
{
char* data;
public:
string(const char* p)
{
size_t size = std::strlen(p) + 1;
data = new char[size];
std::memcpy(data, p, size);
}
Since we chose to manage the memory ourselves, we need...
Windows batch: echo without new line
... faster is <nul set /p =Hello. set /p can't echo an equal sign as first character nor spaces/tabs.
– jeb
Aug 18 '11 at 18:23
...
Convert MySql DateTime stamp into JavaScript's Date format
...der browsers (now fixed):
new (Function.prototype.bind.apply(Date, [null].concat("2010-06-09 13:12:01".split(/[\s:-]/)).map(function(v,i){return i==2?--v:v}) ));
alert(d); // Wed Jun 09 2010 13:12:01 GMT+0100 (GMT Daylight Time)
...
Correct way to populate an Array with a Range in Ruby
...
@kakubei use concat instead of <<. Also, you shouldn't be getting "can't convert Range into Integer" unless order is an integer - in which case you'd be bit-shifting, not array-appending.
– Kelvin
...
Ways to save enums in database
... places? Both in CODE public enum foo {bar} and CREATE TABLE foo (name varchar); that can easily get out of sync.
– ebyrob
Nov 11 '16 at 16:17
...
Replace words in the body text
...nextSibling){
if (node.nodeType==3) all.push(node);
else all = all.concat(textNodesUnder(node));
}
return all;
}
textNodes=textNodesUnder(document.body)
for (i in textNodes) { textNodes[i].nodeValue = textNodes[i].nodeValue.replace(/hello/g, 'hi');
`and followingly I applied the r...
Convert UTF-8 encoded NSData to NSString
...ver and I want to convert it to NSString for iPhone. Since data contains characters (like a degree symbol) which have different values on both platforms, how do I convert data to string?
...
Path.Combine for URLs?
...railing slash round for quite a while all for the sake of not doing string concat.
– Carl
Jan 12 '11 at 16:10
66
...
Difference between one-to-many and many-to-one relationship
... Bar references Foo
Not the other way around
CREATE TABLE Foo (
Foo CHAR(10) NOT NULL, -- primary key
Name CHAR(30) NOT NULL
CONSTRAINT PK -- constraint name
PRIMARY KEY (Foo) -- pk
)
CREATE TABLE Bar (
Bar CHAR(10) NOT NULL, -- primary key
...
What is the difference between memmove and memcpy?
...
memmove can handle overlapping memory, memcpy can't.
Consider
char[] str = "foo-bar";
memcpy(&str[3],&str[4],4); //might blow up
Obviously the source and destination now overlap, we're overwriting
"-bar" with "bar". It's undefined behavior using memcpy if the source
and destin...