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Performance surprise with “as” and nullable types
...ypes. The JIT compiler generates a call to a CLR helper function named JIT_Unbox_Nullable to get the job done. This is a general purpose function for any value type, lots of code there to check types. And the value is copied. Hard to estimate the cost since this code is locked up inside mscorwks...
Convert an NSURL to an NSString
...[myURL absoluteString]; But I had met this error and xcode was crashed. -[__NSCFString absoluteString]: unrecognized selector sent to instance 0x791a18e0
– Võ Mai Trinh
Jun 22 '15 at 9:39
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What are CN, OU, DC in an LDAP search?
...ered Nov 27 '15 at 16:18
ROMANIA_engineerROMANIA_engineer
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What is exactly the base pointer and stack pointer? To what do they point?
...
For your updated question, the missing two entries in the stack are:
var_C = dword ptr -0Ch
var_8 = dword ptr -8
var_4 = dword ptr -4
*savedFramePointer = dword ptr 0*
*return address = dword ptr 4*
hInstance = dword ptr 8h
PrevInstance = dword ptr 0C
hlpCmdLine = dword ptr 10h
nShowCmd = dwor...
What is a vertical tab?
...nswered May 7 '15 at 13:08
merce_00merce_00
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What is the difference between concurrency and parallelism?
...h. See also this excellent explanation: haskell.org/haskellwiki/Parallelism_vs._Concurrency
– jberryman
Oct 7 '11 at 2:25
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How can I delete Docker's images?
... The windows powershell equivalent is docker images -q | %{docker rmi -f $_}
– BeatingToADifferentRobot
Jun 28 '16 at 21:17
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Define variable to use with IN operator (T-SQL)
...T @sql = 'SELECT * FROM myTable WHERE myColumn in (' + @list + ')'
exec sp_executeSQL @sql
3) A possible third option is table variables. If you have SQl Server 2005 you can use a table variable. If your on Sql Server 2008 you can even pass whole table variables in as a parameter to stored proced...
How to get the raw value an field?
...nswered Sep 18 '13 at 2:50
int32_tint32_t
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glob exclude pattern
...with patterns.
For example to exclude manifests files (files starting with _) with glob, you can use:
files = glob.glob('files_path/[!_]*')
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