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“for” vs “each” in Ruby
I just had a quick question regarding loops in Ruby. Is there a difference between these two ways of iterating through a collection?
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Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?
I am doing some numerical optimization on a scientific application. One thing I noticed is that GCC will optimize the call pow(a,2) by compiling it into a*a , but the call pow(a,6) is not optimized and will actually call the library function pow , which greatly slows down the performance. (In ...
Dictionaries and default values
Assuming connectionDetails is a Python dictionary, what's the best, most elegant, most "pythonic" way of refactoring code like this?
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Convert command line arguments into an array in Bash
How do I convert command-line arguments into a bash script array?
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Send string to stdin
Is there a way to effectively do this in bash:
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What is a unix command for deleting the first N characters of a line?
For example, I might want to:
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Sublime Text 2: Trim trailing white space on demand
I know that Sublime Text 2 can delete the trailing white space on files upon saving.
5 Answers
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Process escape sequences in a string in Python
Sometimes when I get input from a file or the user, I get a string with escape sequences in it. I would like to process the escape sequences in the same way that Python processes escape sequences in string literals .
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How to drop SQL default constraint without knowing its name?
In Microsoft SQL Server, I know the query to check if a default constraint exists for a column and drop a default constraint is:
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ATL正则表达式库使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
...L正则表达式库使用ATL中，由于ATL Server的需要，需要对Client发送过来的地址、命令等复杂文字字段信息解码，而正则表达式是公认的最强大的文字解析工具，所...ATL中，由于ATL Server的需要，需要对Client发送过来的地址、命令等复...