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Why can't C++ be parsed with a LR(1) parser?
...a parser
that does this isn't context free, and LR parsers
(the pure ones, etc.) are (at best) context free.
One can cheat, and add per-rule reduction-time semantic checks in the
to LR parsers to do this disambiguation. (This code often isn't simple). Most of the other parser types
have some me...
How to exclude a directory in find . command
...since -deletewill first delete the leaves, then the parents of the leaves, etc... But for specifying -prune to make sense, find needs to hit a directory and stop descending it, which clearly makes no sense with -depth or -delete on.
Performance
I set up a simple test of the three top upvoted ans...
Is the 'override' keyword just a check for a overridden virtual method?
...es, only irregularities like missing const or writing char instead of int, etc.
– legends2k
Oct 20 '13 at 13:07
1
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What is meant by Resource Acquisition is Initialization (RAII)?
...~ManagedResourceHandle() {delete rawHandle; }
... // omitted operator*, etc
private:
RawResourceHandle* rawHandle;
};
ManagedResourceHandle handle(createNewResource());
handle->performInvalidOperation();
In this latter case, when the exception is thrown and the stack is unwound, the loca...
Where is a complete example of logging.config.dictConfig?
... django-specific? What if I'm using a different framework (Flask, Bottle, etc), or not even working on a web application?
– Adam Parkin
Dec 18 '18 at 21:04
...
When are you truly forced to use UUID as part of the design?
...probability of collision.
This can aid in database replication resolution etc...
It would be easy for online users to generate unique keys for something without the overhead or possibility of collision, but that is not what UUIDs are for.
Anyways, a word on the probability of collision, taken fro...
angularJS: How to call child scope function in parent scope
...he caller scope is (I mean in $scope.$parent or in $scope.$parent.$parent, etc)? Ah, yes: pass a callback in params! :)
– user2173353
Jul 28 '14 at 11:23
...
How to watch for array changes?
...fer another solution... allowing you to intercept method calls, accessors, etc. Most importantly, you can do this without even providing an explicit property name... which would allow you to test for an arbitrary, index-based access/assignment. You can even intercept property deletion. Proxies would...
When should I use the new keyword in C++?
...(static) data are placed in their own segments. For example, .data, .bss, etc... linker segments. Pedantic, I know...
– Dan
Mar 17 '09 at 20:51
...
How does collections.defaultdict work?
...interesting when the values in a dictionary are collections (lists, dicts, etc.) In this case, the value (an empty list or dict) must be initialized the first time a given key is used. While this is relatively easy to do manually, the defaultdict type automates and simplifies these kinds of operatio...