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Is Hash Rocket deprecated?
...ticular:
You must use the rocket for symbols that are not valid labels: :$set => x is valid but $set: x is not. In Ruby 2.2+ you can get around this problem with quotes: '$set': x will do The Right Thing.
You must use the rocket if you use keys in your Hashes that aren't symbols, such as string...
What are the obj and bin folders (created by Visual Studio) used for?
...g or release sub-folder for the obj and bin folders. If I edit my project settings to build to the debug/release sub-folder depending on the currently selected configuration, i get an error that the data type couldn't be created when I debug my application. My app only ever looks in the bin folder...
Use JSTL forEach loop's varStatus as an ID
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The variable set by varStatus is a LoopTagStatus object, not an int. Use:
<div id="divIDNo${theCount.index}">
To clarify:
${theCount.index} starts counting at 0 unless you've set the begin attribute
${theCount.count} starts cou...
自动生成Linux下Makefile全攻略（automake原理） - C/C++ - 清泛网 - 专注C/C++及内核技术
... assume program is part of Cygnus-style tree
--foreign set strictness to foreign
--gnits set strictness to gnits
--gnu set strictness to gnu
Library files:
-a, --add-missing add missing standard files to package
--libdir=DIR...
“use database_name” command in PostgreSQL
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In pgAdmin you can also use
SET search_path TO your_db_name;
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How can I change a secret Gist to public?
I upload a Gist code and set it to be secret.
3 Answers
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Excluding directories in os.walk
...une the (subsequent) files and directories visited by os.walk:
# exclude = set(['New folder', 'Windows', 'Desktop'])
for root, dirs, files in os.walk(top, topdown=True):
dirs[:] = [d for d in dirs if d not in exclude]
From help(os.walk):
When topdown is true, the caller can modify the dirname...
VS2005中SetUnhandledExceptionFilter函数应用 - C/C++ - 清泛网 - 专注C/C++及内核技术
VS2005中SetUnhandledExceptionFilter函数应用很多软件通过设置自己的异常捕获函数，捕获未处理的异常，生成报告或者日志（例如生成mini-dump文件），达到Release版本下追踪Bug的目的。...很多软件通过设置自己的异常捕获函数，捕获未...
What happens to a declared, uninitialized variable in C? Does it have a value?
... older architectures.
Attempting to work with a value with these flag bits set can result in a CPU exception in an operation that really shouldn't fail (eg, integer addition, or assigning to another variable). And if you go and leave a variable uninitialized, the compiler might pick up some random g...
using gitignore to ignore (but not delete) files
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.gitignore has no effect on tracked files.
What you want is to set the assume-unchanged bit on the files in the tmp/ directory. There's a good explanation how to do that here: Git: untrack a file in local repo only and keep it in the remote repo
Also, one-liners for setting assume-unch...