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What's the difference between deque and list STL containers?
...ue because list needed more calls to new/delete. That will obviously vary based on which STL implementation you have.
– Andy Krouwel
Jun 15 '17 at 7:22
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Installing Python 3 on RHEL
...ded a comment for that. It's the best I found. If you want to stick to RPM-based installation, you should use IUS repositories for CentOS 7. They provide a python34u-pip.
– Samuel Phan
Oct 1 '15 at 21:11
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What column type/length should I use for storing a Bcrypt hashed password in a Database?
I want to store a hashed password (using BCrypt) in a database. What would be a good type for this, and which would be the correct length? Are passwords hashed with BCrypt always of same length?
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Real differences between “java -server” and “java -client”?
...tions. These two solutions share the Java HotSpot runtime environment code base, but use different compilers that are suited to the distinctly unique performance characteristics of clients and servers. These differences include the compilation inlining policy and heap defaults.
Although the Server a...
Windows下如何判断Win32 or x64？ - C/C++ - 清泛网 - 专注C/C++及内核技术
Windows下如何判断Win32 or x64？MSDN 里说，VC 有 3 个预处理常量，分别是 _WIN32，_WIN64，WIN32。这三个常量如何使用呢？看起来简单，其实是很困惑的。 在 Win3...MSDN 里说，VC 有 3 个预处理常量，分别是 _WIN32，_WIN64，WIN32。这三个...
Retrieve list of tasks in a queue in Celery
...'re using Redis. To get the task counts:
redis-cli -h HOST -p PORT -n DATABASE_NUMBER llen QUEUE_NAME
But, prioritized tasks use a different key in redis, so the full picture is slightly more complicated. The full picture is that you need to query redis for every priority of task. In python (and ...
How can I generate random alphanumeric strings?
...hen the call to .Next() will return the same value as Random() uses a time based seed.
– Dan Rigby
Sep 30 '13 at 18:16
2
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How to write a large buffer into a binary file in C++, fast?
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std::vector<uint64_t> data = GenerateData(bytes);
std::ios_base::sync_with_stdio(false);
auto startTime = std::chrono::high_resolution_clock::now();
auto myfile = std::fstream("file.binary", std::ios::out | std::ios::binary);
myfile.write((char*)&data[0], bytes);
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Quit and restart a clean R session from within R?
...xec which would normally be used to open a file in the default application based on file type. When used on a .exe, apparently, it runs the executable. The important difference, though, is that the system starts the application in it's own separate context. So here's the code that works for me:
mak...
Is gcc std::unordered_map implementation slow? If so - why?
...ng the code on GCC.
My answer is just to establish some kind of knowledge base to other answers.
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