...ure but with mutable elements. This happens in some variations of undoable union-find IIRC. Immutability has big advantages, but sharing part or all of a data structure as an optimisation is perfectly possible with mutables. Even if you want apparent immutability for other references, you can always...

...llo" They are not very useful on their own but can be combined in a type union to create a powerful (and useful) abstraction e.g.: type CardinalDirection = "North" | "East" | "South" | "West"; function move(distance: number, direction: CardinalDirection) { // ... } move(1,"N...

... lots of fields if you really want to be generic. The UPU Universal Postal Union provides address data for lots of countries in a standard format. Note that the UPU format holds all addresses (down to the available field precision) for a whole country, it is therefore relational. If storing customer...

...goto if int long register return short signed static struct switch typedef union unsigned void volatile while Here's an article discussing some other differences with C as used in the kernel and the standard: http://www.ibm.com/developerworks/linux/library/l-gcc-hacks/index.html ...

... @eipxen: There's | for union, & for intersection, and ^ for getting elements that are in one or the other but not both. But in a dynamically typed language where it's sometimes difficult to read the code and know the types of objects flying aro...

...the following simple function. def diff(list1, list2): c = set(list1).union(set(list2)) # or c = set(list1) | set(list2) d = set(list1).intersection(set(list2)) # or d = set(list1) & set(list2) return list(c - d) or def diff(list1, list2): return list(set(list1).symmetric_d...

...ontains and Remove.) HashSet also provides standard set operations such as union, intersection, and symmetric difference. Take a look here There are different implementations of Sets. Some make insertion and lookup operations super fast by hashing elements. However, that means that the order in whi...

... Initializing a vector having struct, class or Union can be done this way std::vector<SomeStruct> someStructVect(length); memset(someStructVect.data(), 0, sizeof(SomeStruct)*length); share...

...ited Sep 12 '17 at 10:27 Gorgon_Union 48522 gold badges88 silver badges1616 bronze badges answered Jul 25 '17 at 16:56 ...

... gets committed, or else deletes don't actually remove data. That is, in a union/copy-on-write file system, cleaning at the end doesn't really reduce file system usage because the real data is already committed to lower layers. To get around this you must clean at each layer. $ docker history bf526...