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What are the main purposes of using std::forward and which problems it solves?
... references. What is the purpose of doing that? How would that affect the called function inner if we leave t1 & t2 as lvalues?
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What does a tilde do when it precedes an expression?
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~ is a bitwise operator that flips all bits in its operand.
For example, if your number was 1, its binary representation of the IEEE 754 float (how JavaScript treats numbers) would be...
0011 1111 1111 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0...
Generic type parameter naming convention for Java (with multiple chars)?
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Blech, single-letter naming. I follow this convention because convention matters more than descriptive names, but it's sad this is the best...
An efficient way to transpose a file in Bash
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ghostdog74ghostdog74
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How to get an outline view in sublime texteditor?
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This is awesome and I was really missing outline view from Eclipse. This is honestly much better though I wish there was a way to have it pull up only the main functions and not the callbacks/success functions.
– Michael BW
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List or IList [closed]
...u are exposing your class through a library that others will use, you generally want to expose it via interfaces rather than concrete implementations. This will help if you decide to change the implementation of your class later to use a different concrete class. In that case the users of your lib...
Listing all permutations of a string/integer
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First of all: it smells like recursion of course!
Since you also wanted to know the principle, I did my best to explain it human language. I think recursion is very easy most of the times. You only have to grasp two steps:
The first ...
What is the use of the @ symbol in PHP?
...om error handler function with set_error_handler() then it will still get called, but this custom error handler can (and should) call error_reporting() which will return 0 when the call that triggered the error was preceded by an @...
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Why use the yield keyword, when I could just use an ordinary IEnumerable?
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Note that using FullList.Where(IsItemInPartialList) will be just as lazy. Only, it requires far less compiler generated custom ---gunk--- code. And less developer time writing and maintaining. (Of course, that was just this example)
– sehe
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How to print to console in pytest?
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Using -s option will print output of all functions, which may be too much.
If you need particular output, the doc page you mentioned offers few suggestions:
Insert assert False, "dumb assert to make PyTest print my stuff" at the end of your function, and you...