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Guaranteed lifetime of temporary in C++?
Does C++ provide a guarantee for the lifetime of a temporary variable that is created within a function call but not used as a parameter? Here's an example class:
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What is the difference between LR, SLR, and LALR parsers?
...rrent state S (and associated lookahead, GOTO, and reduction tables) to decide what to do:
SHIFT: If the current table says to SHIFT on the token T, the pair (S,T) is pushed onto the parse stack, the state is changed according to what the GOTO table says for the current token (e.g, GOTO(T)), anoth...
Linux bash: Multiple variable assignment
...I was using this technique to return multiple values from a script that I did care about the return status. I thought I would share my findings.
– Lee Netherton
Oct 22 '15 at 11:26
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Stopping scripters from slamming your website
This is about the bag o' crap sales on woot.com. I'm the president of Woot Workshop, the subsidiary of Woot that does the design, writes the product descriptions, podcasts, blog posts, and moderates the forums. I work with CSS/HTML and am only barely familiar with other technologies. I work closely ...
Filter rows which contain a certain string
...:
dplyr::filter(df, !grepl("RTB",TrackingPixel))
Since you have not provided the original data, I will add a toy example using the mtcars data set. Imagine you are only interested in cars produced by Mazda or Toyota.
mtcars$type <- rownames(mtcars)
dplyr::filter(mtcars, grepl('Toyota|Mazda', ...
How to print a linebreak in a python function?
... @WinstonEwert Don't you think you should rephrase it to avoid the confusion, instead of leaving it as is?
– Luca Bezerra
Jul 17 '18 at 17:39
7
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Why CancellationToken is separate from CancellationTokenSource?
...swered Mar 28 '13 at 0:40
Mike LiddellMike Liddell
1,39111 gold badge99 silver badges99 bronze badges
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What are copy elision and return value optimization?
...n practice (restrictions apply).
It's the only form of optimization that elides (ha!) the as-if rule - copy elision can be applied even if copying/moving the object has side-effects.
The following example taken from Wikipedia:
struct C {
C() {}
C(const C&) { std::cout << "A copy was ma...
When to make a type non-movable in C++11?
I was surprised this didn't show up in my search results, I thought someone would've asked this before, given the usefulness of move semantics in C++11:
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Apache Spark: map vs mapPartitions?
...ons)? Does it move data between nodes? I've been using mapPartitions to avoid moving data between nodes, but wasn't sure if flapMap would do so.
– Nicholas White
Jan 18 '14 at 10:52
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