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Easy way to concatenate two byte arrays
What is the easy way to concatenate two byte arrays?
12 Answers
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Pandas: drop a level from a multi-level column index?
If I've got a multi-level column index:
7 Answers
7
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How do you create a static class in C++?
How do you create a static class in C++? I should be able to do something like:
13 Answers
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Python function global variables?
I know I should avoid using global variables in the first place due to confusion like this, but if I were to use them, is the following a valid way to go about using them? (I am trying to call the global copy of a variable created in a separate function.)
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Automating the InvokeRequired code pattern
I have become painfully aware of just how often one needs to write the following code pattern in event-driven GUI code, where
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How to initialize std::vector from C-style array?
What is the cheapest way to initialize a std::vector from a C-style array?
6 Answers
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Why are preprocessor macros evil and what are the alternatives?
I have always asked this but I have never received a really good answer; I think that almost any programmer before even writing the first "Hello World" had encountered a phrase like "macro should never be used", "macro are evil" and so on, my question is: why? With the new C++11 is there a real alte...
为什么你越努力，却越焦虑？ - 杂谈 - 清泛网 - 专注C/C++及内核技术
为什么你越努力，却越焦虑？文 | 山羊月（Essex大学环境社会学资深博士）我并不是心理学专业，只是看到这个题目有感而发，想结合自己的情况谈谈。如果有所疏漏偏颇，...
文 | 山羊月（Essex大学环境社会学资深博士）
我...
提升速度：XP注册表与驱动优化 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...件来提升Windows XP的运行速度!
注册表优化方案
1、启用CPU L2 Cahce
到注册表HKCU_LOCAL_MACHINESYSTEMCurrentControlSetControlSession ManagerMemory Management下，新建Dword值:
SecondLevelDataCache，修改这个值为你的CPU的二级缓存的大小，填写的时候使用...
Aggregate / summarize multiple variables per group (e.g. sum, mean)
...om a data frame, is there a easy way to aggregate ( sum , mean , max et c) multiple variables simultaneously?
8 Answers
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