大约有 389 项符合查询结果（耗时：0.0163秒） [XML]
Floating point vs integer calculations on modern hardware
...e @Peter Cordes
https://gist.github.com/Lewiscowles1986/90191c59c9aedf3d08bf0b129065cccc
i7 4700MQ Linux Ubuntu Xenial 64-bit (all patches to 2018-03-13 applied)
short add: 0.773049
short sub: 0.789793
short mul: 0.960152
short div: 3.273668
int add: 0.837695
int sub: ...
In Java, what is the best way to determine the size of an object?
... (somewhere else) (something else)
d5e64bf8 16 java.util.regex.Pattern$Begin .root (object)
d5e64c08 24 java.util.regex.Pattern$BitClass .root.next.atom.val$rhs (object)
d5e64c20 272 [Z ...
u'\ufeff' in Python string
... BOM decoded with utf-16le %r' % e16.decode('utf-16le')
Note that EF BB BF is a UTF-8-encoded BOM. It is not required for UTF-8, but serves only as a signature (usually on Windows).
Output:
utf-8 'ABC'
utf-8-sig '\xef\xbb\xbfABC'
utf-16 '\xff\xfeA\x00B\x00C\x00' # Adds BOM and encode...
Why would finding a type's initializer throw a NullReferenceException?
...r12
000007fe`e5735366 4883ec30 sub rsp,30h
000007fe`e573536a 498bf8 mov rdi,r8
000007fe`e573536d 8bea mov ebp,edx
000007fe`e573536f 48c744242800000000 mov qword ptr [rsp+28h],0
000007fe`e5735378 488bb42480000000 mov rsi,qword ptr [rsp+80h]
000007fe`e57353...
SQL injection that gets around mysql_real_escape_string()
...attack...
mysql_query('SET NAMES gbk');
$var = mysql_real_escape_string("\xbf\x27 OR 1=1 /*");
mysql_query("SELECT * FROM test WHERE name = '$var' LIMIT 1");
In certain circumstances, that will return more than 1 row. Let's dissect what's going on here:
Selecting a Character Set
mysql_query('SET N...
Fastest way to list all primes below N
...st with pypy. This is what I found for the non-numpy ones gist.github.com/5bf466bb1ee9e5726a52
– Ehsan Kia
Apr 28 '14 at 1:53
1
...
Proper use of the IDisposable interface
...tial COM:
Direct link: Chapter 1 sample by Pearson Publishing
magnet: 84bf0b960936d677190a2be355858e80ef7542c0
In 35 pages he explains the problems of using binary objects, and invents COM before your eyes. Once you realize the why of COM, the remaining 300 pages are obvious, and just detail Mi...
RegEx for matching UK Postcodes
...:
See regex in use here
^(([A-Z][A-HJ-Y]?\d[A-Z\d]?|ASCN|STHL|TDCU|BBND|[BFS]IQQ|PCRN|TKCA) ?\d[A-Z]{2}|BFPO ?\d{1,4}|(KY\d|MSR|VG|AI)[ -]?\d{4}|[A-Z]{2} ?\d{2}|GE ?CX|GIR ?0A{2}|SAN ?TA1)$
And in relation to 2. Simplified Patterns:
See regex in use here
^(([A-Z]{1,2}\d[A-Z\d]?|ASCN|STHL|TDCU|...
JavaScript + Unicode regexes
...\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u20...
Programmer Puzzle: Encoding a chess board state throughout a game
...g5
hxg5 29. b3 Ke6 30. a3 Kd6 31. axb4 cxb4 32. Ra5 Nd5 33. f3 Bc8 34. Kf2 Bf5
35. Ra7 g6 36. Ra6+ Kc5 37. Ke1 Nf4 38. g3 Nxh3 39. Kd2 Kb5 40. Rd6 Kc5 41. Ra6
Nf2 42. g4 Bd3 43. Re6 1/2-1/2
If you want to make it smaller, then just zip it. Job done!
...