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In C/C++ what's the simplest way to reverse the order of bits in a byte?
While there are multiple ways to reverse bit order in a byte, I'm curious as to what is the "simplest" for a developer to implement. And by reversing I mean:
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Sort a text file by line length including spaces
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Answer
cat testfile | awk '{ print length, $0 }' | sort -n -s | cut -d" " -f2-
Or, to do your original (perhaps unintentional) sub-sorting of any equal-length lines:
cat testfile | awk '{ print length, $0 }' | sort -n | cut -d" " -f2-
In both cases, we have solved your st...
Getting the parent of a directory in Bash
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dir=/home/smith/Desktop/Test
parentdir="$(dirname "$dir")"
Works if there is a trailing slash, too.
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Do HttpClient and HttpClientHandler have to be disposed between requests?
...Net.Http.HttpClient and System.Net.Http.HttpClientHandler in .NET Framework 4.5 implement IDisposable (via System.Net.Http.HttpMessageInvoker ).
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Merge / convert multiple PDF files into one PDF
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Just make sure you remember to provide out.pdf, or else it will overwrite the last file in your command, sigh.
– mlissner
Oct 19 '13 at 22:20
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push_back vs emplace_back
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In addition to what visitor said :
The function void emplace_back(Type&& _Val) provided by MSCV10 is non conforming and redundant, because as you noted it is strictly equivalent to push_back(Type&& _Val).
But the real C++0x form of ...
'Incomplete final line' warning when trying to read a .csv file into R
I'm trying to read a .csv file into R and upon using this formula:
15 Answers
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How to force Chrome browser to reload .css file while debugging in Visual Studio?
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There are much more complicated solutions, but a very easy, simple one is just to add a random query string to your CSS include.
Such as src="/css/styles.css?v={random number/string}"
If you're using php or another server-side language, y...
Sort array of objects by single key with date value
I have an array of objects with several key value pairs, and I need to sort them based on 'updated_at':
19 Answers
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Any tools to generate an XSD schema from an XML instance document? [closed]
I am looking for a tool which will take an XML instance document and output a corresponding XSD schema.
10 Answers
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