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HEAD and ORIG_HEAD in Git
...ctually, it will be for 1.8.5 or 1.9, Q4 2013: reintroduced with commit 9ba89f4 )
Instead of typing four capital letters "HEAD", you can say "@" now,
e.g. "git log @".
See commit cdfd948
Typing 'HEAD' is tedious, especially when we can use '@' instead.
The reason for choosing '@' is...
How can bcrypt have built-in salts?
... answered Jun 7 at 8:22
jony89jony89
3,10911 gold badge1919 silver badges3232 bronze badges
...
Undefined, unspecified and implementation-defined behavior
...
Another point I just noticed: C89 did not use the term "extension" to describe features that were guaranteed on some implementations but not others. The authors of C89 recognized that the majority of then-current implementations would treat signed arithme...
What is the effect of extern “C” in C++?
...turn 1; }
Run:
g++ -c -o main.o -std=c++98 main.cpp
gcc -c -o c.o -std=c89 c.c
g++ -o main.out main.o c.o
./main.out
Without extern "C" the link fails with:
main.cpp:6: undefined reference to `f()'
because g++ expects to find a mangled f, which gcc did not produce.
Example on GitHub.
Minim...
Get Character value from KeyCode in JavaScript… then trim
...84]
"U", // [85]
"V", // [86]
"W", // [87]
"X", // [88]
"Y", // [89]
"Z", // [90]
"OS_KEY", // [91] Windows Key (Windows) or Command Key (Mac)
"", // [92]
"CONTEXT_MENU", // [93]
"", // [94]
"SLEEP", // [95]
"NUMPAD0", // [96]
"NUMPAD1", // [97]
"NUMPAD2", // [98]
"NUMP...
Remove sensitive files and their commits from Git history
...
Black
10.9k1919 gold badges8989 silver badges165165 bronze badges
answered May 16 '09 at 16:04
natacadonatacado
...
Is R's apply family more than syntactic sugar?
...
ShaneShane
89.7k3131 gold badges215215 silver badges215215 bronze badges
...
What is Cache-Control: private?
...hash the final markup):
200 OK
ETag: "33a64df551425fcc55e4d42a148795d9f25f89d4"
And exactly like in the case of a conditional request based on Last-Modified:
GET / HTTP/1.1
If-Modified-Since: Tue, 16 Oct 2012 03:13:38 GMT
304 Not Modified
I can perform a conditional request based on the ETag:...
Fastest hash for non-cryptographic uses?
...tarttime);
}
function randomString($length) {
$characters = '0123456789abcdefghijklmnopqrstuvwxyz';
$string = '';
for ($p = 0; $p < $length; $p++) {
$string .= $characters[mt_rand(0, strlen($characters) - 1)];
}
return $string;
}
?>
And the output
1 - crc...
std::vector performance regression when enabling C++11
...,466 cycles # 2.795 GHz ( +- 1.89% ) [77.53%]
50,721,061 stalled-cycles-frontend # 51.22% frontend cycles idle ( +- 3.74% ) [79.47%]
25,585,331 stalled-cycles-backend # 25.84% backend cycles idle ( +- 4.90% ) [73.07%]
...