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How to track down a “double free or corruption” error
...1
==20859== Memcheck, a memory error detector
==20859== Copyright (C) 2002-2009, and GNU GPL'd, by Julian Seward et al.
==20859== Using Valgrind-3.5.0 and LibVEX; rerun with -h for copyright info
==20859== Command: ./t1
==20859==
==20859== Invalid free() / delete / delete[]
==20859== at 0x4A05A31...
Does Python optimize tail recursion?
...prefers to be able to have proper tracebacks:
Tail Recursion Elimination (2009-04-22)
Final Words on Tail Calls (2009-04-27)
You can manually eliminate the recursion with a transformation like this:
>>> def trisum(n, csum):
... while True: # Change recursion to a...
Get day of week in SQL Server 2005/2008
If I have a date 01/01/2009, I want to find out what day it was e.g. Monday, Tuesday, etc...
10 Answers
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Android: open activity without save into the stack
...answered Sep 25 '13 at 15:05
dac2009dac2009
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Converting a String to DateTime
How do you convert a string such as 2009-05-08 14:40:52,531 into a DateTime ?
17 Answers
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SQL query to group by day
...reated)) will return the day created
for example, if the sale created on '2009-11-02 06:12:55.000',
dateadd(DAY,0, datediff(day,0, created)) return '2009-11-02 00:00:00.000'
select sum(amount) as total, dateadd(DAY,0, datediff(day,0, created)) as created
from sales
group by dateadd(DAY,0, datediff...
Which browsers support ?
On December 1, 2009, Google announced support for asynchronous Google Analytics tracking .
6 Answers
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How does the Amazon Recommendation feature work?
...ess (2008).
Y. Koren, "The BellKor Solution to the Netflix Grand Prize", (2009).
A. Töscher, M. Jahrer, R. Bell, "The BigChaos Solution to the Netflix Grand Prize", (2009).
M. Piotte, M. Chabbert, "The Pragmatic Theory solution to the Netflix Grand Prize", (2009).
The 2008 papers are from the f...
来自微软的一手内幕：Windows 10是怎么出炉的 - 创意 - 清泛网 - 专注C/C++及内核技术
...接应用的时代。
但是他们失策了。用户们拒绝使用新版Windows，没有了用户的支持，开发者们也首鼠两端。然而iPad并未碾压笔记本，消费者们对触屏电脑兴趣缺缺。另一个Windows 8.1版本试图挽回败局，但是为时已晚。市场已有...
Ruby on Rails and Rake problems: uninitialized constant Rake::DSL
...wered Jul 13 '11 at 22:52
djblue2009djblue2009
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