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Why can't C++ be parsed with a LR(1) parser?
...g., knowledge of the type of x) must collect both in order to decide later what to do. Thus a grammar must allow this. And that makes the grammar ambiguous.
Thus pure LR parsing can't handle this. Nor can many other widely available parser generators, such as Antlr, JavaCC, YACC, or traditional B...
How to avoid variable substitution in Oracle SQL Developer with 'trinidad & tobago'
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What (else) does set define off; do?
– Xonatron
Mar 16 '12 at 18:54
add a comment
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HTML5 check if audio is playing?
What's the javascript api for checking if an html5 audio element is currently playing?
9 Answers
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Default value of a type at Runtime [duplicate]
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@Gabor Actually in this case what's going on is that Activator.CreateInstance always returns a System.Object, so if you ask it to make an instance of a ValueType, it has to box it. Nullable<T> has special-casing in the runtime for boxing so that th...
Non-CRUD operations in a RESTful service
What is the "RESTful" way of adding non-CRUD operations to a RESTful service? Say I have a service that allows CRUD access to records like this:
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server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
...by an institution/company that isn't in the list of your OS's list of CAs. What you have to do to circumvent the problem on your computer is telling it to trust that certificate - if you don't have any reason to be suspicious about it.
You need to check the web certificate used for your gitLab serv...
C# naming convention for constants?
... don't think there is right or wrong here; it comes down to preference and what makes the code clearer.
– usefulBee
Jun 22 '16 at 14:18
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angularJS: How to call child scope function in parent scope
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That's pretty cool! But, what if you don't (want to) know where the 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 a...
How to check if a number is a power of 2
...0);
Well we already know that 4 != 0 evals to true, so far so good. But what about:
((4 & (4-1)) == 0)
This translates to this of course:
((4 & 3) == 0)
But what exactly is 4&3?
The binary representation of 4 is 100 and the binary representation of 3 is 011 (remember the & ...
How to allow only numeric (0-9) in HTML inputbox using jQuery?
...: it is really too risky playing with keycodes, because you cannot be sure what the keyboard layout is. For example, on French keyboards, users have to press shift in order to type numbers. So this code will not work at all. So please go for validation instead of this keycode hack.
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