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Technically what is the main difference between Oracle JDK and OpenJDK? [duplicate]
...toys, I started to notice random/unknown fatal error and crashes (with H.264 codecs, etc.), and it was a nightmare till then to get ride of system crash+fatal errors caused by OpenJDK.
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What exactly is a C pointer if not a memory address?
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149
The C standard does not define what a pointer is internally and how it works internally. This i...
High performance fuzzy string comparison in Python, use Levenshtein or difflib [closed]
...r().split("\t")
diffl = difflib.SequenceMatcher(None, sr[3], sr[4]).ratio()
lev = Levenshtein.ratio(sr[3], sr[4])
sor = 1 - distance.sorensen(sr[3], sr[4])
jac = 1 - distance.jaccard(sr[3], sr[4])
print diffl, lev, sor, jac
I then plotted th...
Show pending migrations in rails
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Malik Shahzad
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answered Jan 25 '11 at 17:58
jrdiokojrdioko
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9个常用iptables配置实例 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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以上命令设置将由x.x.x.x ip发往eth0网口的tcp包丢弃。
4.配置服务项
利用iptables，我们可以对日常用到的服务项进行安全管理，比如设定只能通过指定网段、由指定网口通过SSH连接本机：
iptables -A INPUT -i eth0 -p tcp -s 192.168.100...
How to turn on (literally) ALL of GCC's warnings?
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You can't.
The manual for GCC 4.4.0 is only comprehensive for that version, but it does list all the possible warnings for 4.4.0. They're not all on the page you link to though, for instance some language-specific options are on the pages for C++ options ...
Get a substring of a char* [duplicate]
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char subbuff[5];
memcpy( subbuff, &buff[10], 4 );
subbuff[4] = '\0';
Job done :)
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Determining memory usage of objects? [duplicate]
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Timeout function if it takes too long to finish [duplicate]
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Danra
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answered Feb 17 '10 at 16:56
David NarayanDavid Narayan
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'Operation is not valid due to the current state of the object' error during postback
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