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Cast int to varchar
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Mad Physicist
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answered Sep 12 '15 at 18:08
nancynancy...
When should I use mmap for file access?
...r sequential reads, mmap() will give you no measurable advantage - this is based on empirical and theoretical evidence. If you don't believe me, write your own test.
– Tim Cooper
Dec 9 '08 at 4:40
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Concurrent HashSet in .NET Framework?
...Dictionary or locking over a HashSet I created an actual ConcurrentHashSet based on ConcurrentDictionary.
This implementation supports basic operations per item without HashSet's set operations as they make less sense in concurrent scenarios IMO:
var concurrentHashSet = new ConcurrentHashSet<s...
Best way to unselect a in jQuery?
...('selectedIndex', '-1');
This is explained in the post linked by flyfishr64. If you look at it, you will see how there are 2 cases - multi / non-multi. There is nothing stopping you chaning both for a complete solution:
$("#selectID").attr('selectedIndex', '-1').find("option:selected").removeAt...
SPA best practices for authentication and session management
...quest.
This, of course, absolutely requires SSL, because you're passing a Base64 (reversibly) encoded name and password with every request. Anybody listening on the line could extract username and password trivially. Most of the "Basic Auth is insecure" arguments come from a place of "Basic Auth ov...
Convert timestamp to date in MySQL query
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64
Convert timestamp to date in MYSQL
Make the table with an integer timestamp:
mysql> create...
Matrix Transpose in Python
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64
>>> theArray = [['a','b','c'],['d','e','f'],['g','h','i']]
>>> [list(i) for i...
PHP best way to MD5 multi-dimensional array?
...und, read Merkle-Damgard construction (which MD5, SHA-1, and SHA-2 are all based on).
– Chris Jester-Young
Sep 16 '12 at 1:06
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不同品牌的防火墙组成高可靠性集群 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...dirs /usr/local/info
mkdir -p -- /usr/local/info
/usr/bin/install -c -m 644 ./zebra.info /usr/local/info/zebra.info
install-info --info-dir=/usr/local/info /usr/local/info/zebra.info
/bin/sh ../mkinstalldirs /usr/local/man/man1
mkdir -p -- /usr/local/man/man1
/usr/bin/install -c -m 644 ./vt...
Processing Symbol Files in Xcode
...needed are armv7 (e.g. iPhone 4, iPhone 4s), armv7s (e.g. iPhone 5) and arm64 (e.g. iPhone 5s).
So if you want to symbolicate a crash report that happened on an iPhone 5 with armv7s and only have the symbols for armv7 for that specific iOS version, Xcode won't be able to (fully) symbolicate the cra...