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Thread pooling in C++11
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This is copied from my answer to another very similar post, hope it can help:
1) Start with maximum number of threads a system can support:
int Num_Threads = thread::hardware_concurrency();
2) For an efficient threadpool implementation, o...
How to set variable from a SQL query?
I'm trying to set a variable from a SQL query:
9 Answers
9
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Python logging: use milliseconds in time format
By default logging.Formatter('%(asctime)s') prints with the following format:
10 Answers
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Elegant way to invert a map in Scala
Learning Scala currently and needed to invert a Map to do some inverted value->key lookups. I was looking for a simple way to do this, but came up with only:
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How do I declare a 2d array in C++ using new?
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A dynamic 2D array is basically an array of pointers to arrays. You can initialize it using a loop, like this:
int** a = new int*[rowCount];
for(int i = 0; i < rowCount; ++i)
a[i] = new int[colCount];
The above, for colCo...
Numpy matrix to array
I am using numpy. I have a matrix with 1 column and N rows and I want to get an array from with N elements.
9 Answers
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CListCtrl 行高设置，自定义行高 - C/C++ - 清泛网 - 专注C/C++及内核技术
...行高设置，自定义行高先看效果：主要步骤及代码剖析：MyListCtrl.h#pragma onceclass CMyListCtrl : public CListCtrl{public:CMyListCtrl(void);~CMyListC...先看效果：
主要步骤及代码剖析：
MyListCtrl.h
#pragma once
class CMyListCtrl : public CListCtrl
{
p...
How to get first and last day of previous month (with timestamp) in SQL Server
I could not find the solution which gives first and last day of previous month with timestamp. Hope this helps others. If there is already a solution for this problem I apologize.
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Real life m>ex m>ample, when to use OUTER / CROSS APPLY in SQL
... / OUTER APPLY with a colleague and we're struggling to find real life m>ex m>amples of where to use them.
4 Answers
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How can I get m>Ex m>press to output nicely formatted HTML?
...="http://www.w3.org/1999/xhtml">
<head>
<meta name="generator" content=
"HTML Tidy for Linux (vers 25 March 2009), see www.w3.org" />
<title>My Title</title>
<link rel="stylesheet" href="/stylesheets/style.css" type=
"tm>ex m>t/css" />
<script type="tm>ex m>t/javascript" sr...