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How do I check if a file exists in Java?
...a.io.File.exists() (from my small benchmark on the only computer I tested: Windows Server 2012 running Java 1.7.0_45 x64).
– Matthieu
May 16 '17 at 16:53
1
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Copying text with color from Notepad++
...update As of 2019 NppExport is not included by default in the Notepad++ 64 bits version (github issue). You can download the 64 bits version of NppExport here: [github]
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Map a network drive to be used by a service
Suppose some Windows service uses code that wants mapped network drives and no UNC paths. How can I make the drive mapping available to the service's session when the service is started? Logging in as the service user and creating a persistent mapping will not establish the mapping in the context of...
What do linkers do?
...eeds to be relocated, here we have only one for the string.
Simplifying a bit, for this particular line we have the following information:
Offset = C: what is the first byte of the .text that this entry changes.
If we look back at the decompiled text, it is exactly inside the critical movabs $0x...
TLSF源码及算法介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...ul 28 2007) Herman ten Brugge <hermantenbrugge@home.nl>:
*
* - Add 64 bit support. It now runs on x86_64 and solaris64.
* - I also tested this on vxworks/32and solaris/32 and i386/32 processors.
* - Remove assembly code. I could not measure any performance difference
* on my core2 proc...
How to swap two variables in JavaScript
...to be about 35 times slower than the third variable method on nodejs 7.4.0/win7 64. But it sure is neat.
– mkey
Feb 15 '17 at 21:03
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Win7以上操作系统清理系统图标缓存脚本 - 更多技术 - 清泛网 - 专注C/C++及内核技术
Win7以上操作系统清理系统图标缓存脚本rem 关闭Windows外壳程序explorertaskkill f im explorer.exerem 清理系统图标缓存数据库attrib -h -s -r "%userprofile% AppDa...
rem 关闭Windows外壳程序explorer
taskkill /f /im explorer.exe
rem 清理系统图标缓存数据...
Why is creating a new process more expensive on Windows than Linux?
I've heard that creating a new process on a Windows box is more expensive than on Linux. Is this true? Can somebody explain the technical reasons for why it's more expensive and provide any historical reasons for the design decisions behind those reasons?
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What's the difference between a file descriptor and file pointer?
...E
void *_lock;
#else
long _unused[1];
#endif
#ifdef __64BIT__
long _unused1[4];
#endif /* __64BIT__ */
} FILE;
It is high level interface.
Passed to fread() and fwrite() functions.
Includes buffering,error indication and EOF detection,etc.
Provides higher portabi...
How to identify numpy types in python?
... set.
If you want to test whether a scalar is a numpy scalar, things get a bit more complicated. You could check whether it has a shape and a dtype attribute. You can compare its dtype to the basic dtypes, whose list you can find in np.core.numerictypes.genericTypeRank. Note that the elements of thi...