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What are the differences between virtual memory and physical memory?
...e to correspond to actual physical addresses. The operating system creates and deals with these mappings - utilizing the page table, among other data structures to maintain the mappings. Virtual memory mappings are always found in the page table or some similar data structure (in case of other imple...
How to install a specific JDK on Mac OS X?
...t I'm a bit surprised to only see downloadable versions for Linux, Windows and Solaris ...
16 Answers
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What languages are Windows, Mac OS X and Linux written in?
... was just wondering who knows what programming languages Windows, Mac OS X and Linux are made up from and what languages are used for each part of the OS (ie: Kernel, plug-in architecture, GUI components, etc).
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Converting 'ArrayList to 'String[]' in Java
...ourse, because Java doesn't do real generics; it mostly just fakes them by casting Object)
– Nyerguds
May 19 '16 at 11:05
3
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Is there a portable way to get the current username in Python?
...e current user's username in Python (i.e., one that works under both Linux and Windows, at least). It would work like os.getuid :
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Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_
... uint64_t* buffer = new uint64_t[size/8];
char* charbuffer=reinterpret_cast<char*>(buffer);
for (unsigned i=0;i<size;++i) charbuffer[i]=rand()%256;
uint64_t count,duration;
chrono::time_point<chrono::system_clock> startP,endP;
{
uint64_t c0 = 0;
uint64_t c...
How to duplicate sys.stdout to a log file?
...t appears that there's either no solution, or I'm doing something so non-standard that nobody knows - I'll revise my question to also ask: What is the best way to accomplish logging when a python app is making a lot of system calls?
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How to check if a path is absolute path or relative path in cross platform way with Python?
...'/', whereas Windows starts with alphabet 'C:' or '\'.
Does python has a standard function to check if a path is absolute or relative?
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How to properly overload the
...lains, where before it did not. This code was left on a shelf for 6 months and in between I upgraded my computer from debian etch to lenny (g++ (Debian 4.3.2-1.1) 4.3.2
) however I have the same problem on a Ubuntu system with the same g++.
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c++11右值引用、std::move移动语义、std::forward完美转发的一些总结 - C/C...
...语义。从实现上讲，它基本等同于一个类型转换：static_cast<T&&>(lvalue);特别
std::move 实际上并不能移动任何东西，它唯一的功能是将一个左值强制转换为右值引用，继而用于移动语义。从实现上讲，它基本等同于一个类型转换...