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When to use volatile with multi threading?
...e only that one thread can access the variable, in which case the variable doesn't need to be volatile?
5 Answers
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Hidden Features of VB.NET?
...ed to create own Enum-like types with extended functionality. This feature doesn't work in C#, though.
One example from a recent code of mine:
'
''' <completionlist cref="RuleTemplates"/>
Public Class Rule
Private ReadOnly m_Expression As String
Private ReadOnly m_Options As RegexOpt...
open() in Python does not create a file if it doesn't exist
What is the best way to open a file as read/write if it exists, or if it does not, then create it and open it as read/write? From what I read, file = open('myfile.dat', 'rw') should do this, right?
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What does @synchronized() do as a singleton method in objective C?
...leton method, and I would like to know what the function @synchronized() does, as I use it frequently, but do not know the meaning.
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If a folder does not exist, create it
...n. I want to save a file in a specified folder. Now I want, if this folder does not exist, to first create it, and then save my file to this folder. If the folder already exists, then just save the file in it.
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What exactly does += do in python?
I need to know what += does in python. It's that simple. I also would appreciate links to definitions of other short hand tools in python.
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Why does JavaScript only work after opening developer tools in IE once?
...he console.log issue (at least in IE11):
When the console is not open, IE does pretty aggressive caching, so make sure that any $.ajax calls or XMLHttpRequest calls have caching set to false.
For example:
$.ajax({cache: false, ...})
When the developer console is open, caching is less aggressive...
Only mkdir if it does not exist [duplicate]
...race conditions in concurrent execution. So, depending on what your script does and in which environment it lives the first option given is this answer should be preferred. Also, you could just mkdir product 2>/dev/null and not care.
– user1129682
Sep 4 '13 ...
../libltdl/ltdl.h:106: error: \'LT_DLSYM_CONST\' does not name a type ...
../libltdl/ltdl.h:106: error: 'LT_DLSYM_CONST' does not name a type报错：.. libltdl ltdl.h:106: error: 'LT_DLSYM_CONST' does not name a type解决：编译时加参数 --with-included-ltdl报错：../libltdl/ltdl.h:106: error: 'LT_DLSYM_CONST' does not name a type
解决：编译时加参数 -...
【解决】asan runtime does not come first in initial library list - C/C...
【解决】asan runtime does not come first in initial library listasan-issue-with-asan-library-loading报错信息：ASan runtime does not come first in initial library list; you should eitherlink runtime to your applicationor manually preload it with L 报错信息：
ASan runtime does not com...