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What's the simplest way to test whether a number is a power of 2 in C++?
...will want to check for it explicitly.
http://www.graphics.stanford.edu/~seander/bithacks.html has a large collection of clever bit-twiddling algorithms, including this one.
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Commenting multiple lines in DOS batch file
... DOS Batch file. To test this batch file I need to execute some lines only and want to hide/comment out remaining.
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How to iterate through two lists in parallel?
I have two iterables in Python, and I want to go over them in pairs:
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Difference between binary tree and binary search tree
Can anyone please explain the difference between binary tree and binary search tree with an example ?
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What are the effects of exceptions on performance in Java?
Question: Is exception handling in Java actually slow?
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What's the difference between a 302 and a 307 redirect?
What's the difference between a 302 FOUND and a 307 TEMPORARY REDIRECT HTTP response?
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How to select the first element with a specific attribute using XPath
...n 17 '09 at 10:48
Jonathan FinglandJonathan Fingland
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How to compare two floating point numbers in Bash?
...) )); then
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fi
Explanation
Piping through the basic calculator command bc returns either 1 or 0.
The option -l is equivalent to --mathlib; it loads the standard math library.
Enclosing the whole expression between double parenthesis (( )) will translate these values to respectively true or...
What is the difference between URI, URL and URN? [duplicate]
What's the difference between an URI, URL and URN? I have read a lot of sites (even Wikipedia) but I don't understand it.
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Which terminal command to get just IP address and nothing else?
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It says that -i and -I are both illegal options
– Mason
Dec 16 '11 at 3:08
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