As already mentioned by Conrad, there are some situations where unsafe access to memory in C# is useful. There are not as many of them, but there are some: Manipulating with Bitmap is almost a typical example where you need some additional performance that you can get by using unsafe. Interoperability with older API (such … Read more
Basically you only really need it when you want to use two types with the same fully qualified name (same namespace, same type name) from different assemblies. You declare a different alias for each assembly, so you can then reference them via that alias. Needless to say, you should try to avoid getting into that … Read more
Instead of using regexes you could just (for example) separate your string with str.partition(separator) like this: mystring = “hi my name is ryan, and i am new to python and would like to learn more” keyword = ‘name’ before_keyword, keyword, after_keyword = mystring.partition(keyword) >>> before_keyword ‘hi my ‘ >>> keyword ‘name’ >>> after_keyword ‘ is … Read more
Other replies have pointed out that self is not going to refer to the FORM and that self is window. They’re right; self is window. Well, except when it isn’t. In either IE6 or IE7 (forgot), self.onload would not fire, though window.onload would. All official versions of IE (and even IE9pr3) have an odd, intransitive … Read more
typename and class are interchangeable in the basic case of specifying a template: template<class T> class Foo { }; and template<typename T> class Foo { }; are equivalent. Having said that, there are specific cases where there is a difference between typename and class. The first one is in the case of dependent types. typename … Read more
Just as a brief answer, there are two usages for the static keyword when defining variables: 1- Variables defined in the file scope with static keyword, i.e. defined outside functions will be visible only within that file. Any attempt to access them from other files will result in unresolved symbol at link time. 2- Variables … Read more
This is an open question in NLP, so there is no simple answer. My recommendation for quick-and-dirty “works-for-me” is topia.termextract. Yahoo has a keyword extraction service (http://developer.yahoo.com/search/content/V1/termExtraction.html) which is low recall but high precision. In other words, it gives you a small number of high quality terms, but misses many of the terms in your … Read more
__null is a g++ internal thing that serves roughly the same purpose as the standard nullptr added in C++11 (acting consistently as a pointer, never an integer). NULL is defined as 0, which can be implicitly used as integer, boolean, floating point value or pointer, which is a problem when it comes to overload resolution, … Read more
I agree with the comments that say the friend keyword can improve encapsulation if used wisely. I’d just add that the most common (legitimate!) use for friend classes may be testing. You may want a tester class to have a greater degree of access than other client classes would have. A tester class could have … Read more
Given section 3.4 of the F# 2.0 spec: Identifiers follow the specification below. Any sequence of characters that is enclosed in double-backtick marks (“ “), excluding newlines, tabs, and double-backtick pairs themselves, is treated as an identifier. I suspect you can put it in backticks: “private“ I haven’t tried it though.