...ay of doing that. Then again, there are no portable ways to use #pragma at all. Because of this, many C/C++ compilers define their own methods for doing pragma-like things, and they often can be embedded in macros, but you need a different macro definition on every compiler. If you are willing to go...

...ous as to how I might make effective use of with , while avoiding its pitfalls. 31 Answers ...

...sed via get and set properties. Properties provide a level of abstraction allowing you to change the fields while not affecting the external way they are accessed by the things that use your class. public class MyClass { // this is a field. It is private to your class and stores the actual da...

...ieving that; one using itertools.count() to do the counting, the other manually counting in a generator function: from itertools import count def enumerate(it, start=0): # return an iterator that adds a counter to each element of it return zip(count(start), it) and def enumerate(it, sta...

...yptic, and it immediately makes most readers balk and the remainder assume all the keys in x would have to be legal parameter names. IMHO, the fact it works is a bug in the name-checking mechanisms in the implementation. What happens when you rely on bugs? They either get fixed, or become politic...

... = "function-name"; appeared, where function-name is the name of the lexically-enclosing function. This name is the unadorned name of the function. Note that it is not a macro and it has no special meaning during preprocessing. __func__ was added to C++ in C++11, where it is specified as containi...

...ay elements occurs. ($_ is aliased to the element in #1, but #2 and #3 actually copy the scalars from the array.) #5 might be similar. In terms memory usage: They're all the same except for #5. for (@a) is special-cased to avoid flattening the array. The loop iterates over the indexes of the array...

...ur request is utterly impossible. Why ask for something impossible and totally different from the (possible) thing you actually want?! Maybe you don't realize how drastically different barenames and decorated names are. When you refer to a barename a, you're getting exactly the object a was last ...

... a True In your case, the second test only works because Python caches small integer objects, which is an implementation detail. For larger integers, this does not work: >>> 1000 is 10**3 False >>> 1000 == 10**3 True The same holds true for string literals: >>> "a" i...

...alue) { } Here, H is a template, but I wanted this function to deal with all specializations of H. NOTE: I've been programming c++ for many years and have only needed this once. I find that it is a rarely needed feature (of course handy when you need it!). I've been trying to think of good examp...