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Obfuscated C Code Contest 2006. Please explain sykes2.c

...it. Indenting: main(_) { _^448 && main(-~_); putchar(--_%64 ? 32 | -~7[__TIME__-_/8%8][">'txiZ^(~z?"-48] >> ";;;====~$::199"[_*2&8|_/64]/(_&2?1:8)%8&1 : 10); } Introducing variables to untangle this mess: main(int i) { if(i^448) m...
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Using the rJava package on Win7 64 bit with R

I'm trying to install rJava on a computer with Win 7 64 bit. When I run 12 Answers 1...
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Xcode 5.1 - No architectures to compile for (ONLY_ACTIVE_ARCH=YES, active arch=x86_64, VALID_ARCHS=i

After updating to Xcode 5.1, I can no longer build my project for the 64-bit simulator, receiving this error: 18 Answers ...
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How to detect total available/free disk space on the iPhone/iPad device?

...m. Original answer: I found the following solution working for me: -(uint64_t)getFreeDiskspace { uint64_t totalSpace = 0; uint64_t totalFreeSpace = 0; NSError *error = nil; NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSD...
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Hash and salt passwords in C#

...you must convert a hash to its string representation you can use Convert.ToBase64String and Convert.FromBase64String to convert it back. You should note that you cannot use the equality operator on byte arrays, it checks references and so you should simply loop through both arrays checking each byt...
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How to use Boost in Visual Studio 2010

... Run b2: Win32: b2 --toolset=msvc-10.0 --build-type=complete stage ; x64: b2 --toolset=msvc-10.0 --build-type=complete architecture=x86 address-model=64 stage Go for a walk / watch a movie or 2 / .... Go through steps 2 - 6 from the set of instruction above to set the environment varia...
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64 bit OS下int占几个字节? - C/C++ - 清泛网 - 专注C/C++及内核技术

64 bit OS下int占几个字节?int固定4字节,不要受64 bit的混淆。int是由编程语言设计决定的,不受编译器的影响。__int64才是8位的。另外,指针是受编译器 OS影响的,3...int固定4字节,不要受64 bit的混淆。int是由编程语言设计决定的...
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How to make rpm auto install dependencies

... No, this will not work unless libtest1-1.0-1.x86_64.rpm is in a repository elsewhere, or both packages are specified on the command line like "rpm -i" would require. I just verified this on yum 3.4.3 (Fedora 18). Transcript here showing that it goes to the updates repo for ...
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How to step back in Eclipse debugger?

... The UI is rather clunky, and it can have a hard time handling large code bases, but for some cases it can really save a lot of time. Update: Chronon provides a commercial product that it describes as a "DVR for Java", which appears to do a lot of the same things as the ODB. ...
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How do I detect if Python is running as a 64-bit application? [duplicate]

... windows registry. Depending on whether you're running python as 32-bit or 64-bit, the key value will be different. How do I detect if Python is running as a 64-bit application as opposed to a 32-bit application? ...