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Clear the entire history stack and start a new activity on Android
Is it possible to start an activity on the stack, clearing the entire history before it?
13 Answers
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Why malloc+memset is slower than calloc?
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The short version: Always use calloc() instead of malloc()+memset(). In most cases, they will be the same. In some cases, calloc() will do less work because it can skip memset() entirely. In other cases, calloc() can even cheat and not allocate any memory! However, malloc()+memset() will always...
Running Python code in Vim
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If you're on os x (and I assume unix) ".vimrc" is in the home directory. You can check this by typing ':version' in command mode to check for sure you'll see a line called 'user vimrc file: "..."'
– ThinkBonobo
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How to override and extend basic Django admin templates?
...sue about a year and a half ago and I found a nice template loader on djangosnippets.org that makes this easy. It allows you to extend a template in a specific app, giving you the ability to create your own admin/index.html that extends the admin/index.html template from the admin app. Like this:
{%...
Pass all variables from one shell script to another?
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MESSAGE="hello"
export MESSAGE
./b.py
b.py:
#!/usr/bin/python
import os
print 'The message is:', os.environ['MESSAGE']
Sourcing:
Instead we could source like this:
a.sh:
#!/bin/sh
MESSAGE="hello"
. ./b.sh
b.sh:
#!/bin/sh
echo "The message is: $MESSAGE"
Then:
$ ./a.sh
The message...
Setting the correct encoding when piping stdout in Python
... answered Jan 29 '09 at 18:03
nosklonosklo
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reStructuredText tool support
...nerator of HTML/Latex from reStructuredText
Other 3rd party converters
Most (but not all) of these tools are based on Docutils (see above) and provide conversion to or from formats that might not be supported by the main distribution.
From reStructuredText
restview - This pip-installable pyth...
廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术
...的了解和阅读。
如Lustre、
HDFS
MogileFS
FastDFS
OpenAFS
MooseFS
pNFS
GoogleFS
TFS（taobao）。
仔细阅读下来，发现上述系统不是不成熟，就是太大了，以至于根本就没有合适的环境去部署。寻寻觅觅中一个叫drbd的软件进入了视线
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What does CultureInfo.InvariantCulture mean?
...nstalledUICulture so the default CultureInfo is depending on the executing OS's settings. This is why you should always make sure the culture info fits your intention (see Martin's answer for a good guideline).
CultureInfo.InvariantCulture Example
CultureInfo.InvariantCulture on StackOverflow
Cult...
Why does changing 0.1f to 0 slow down performance by 10x?
... (or subnormal) numbers are kind of a hack to get some extra values very close to zero out of the floating point representation. Operations on denormalized floating-point can be tens to hundreds of times slower than on normalized floating-point. This is because many processors can't handle them dire...