What does a &= b mean? This depends on the implementation for the types of a and b, but semantics are essentially that a &= b is the update of a with its “AND” for b. That “AND” operation could be a set intersection, a binary AND operation, or some other operation that can be … Read more
It works as an inout to make the variable an in-out parameter. In-out means in fact passing value by reference, not by value. And it requires not only to accept value by reference, by also to pass it by reference, so pass it with & – foo(&myVar) instead of just foo(myVar) As you see you … Read more
The & has more the one meanings: 1) take the address of a variable int x; void* p = &x; //p will now point to x, as &x is the address of x 2) pass an argument by reference to a function void foo(CDummy& x); //you pass x by reference //if you modify x inside … Read more
& in a type position means intersection type. More from typescript docs on Intersection Types: https://www.typescriptlang.org/docs/handbook/2/objects.html#intersection-types Citation from the docs linked above: Intersection types are closely related to union types, but they are used very differently. An intersection type combines multiple types into one. This allows you to add together existing types to get a … Read more
& is used to separate commands. Therefore you can use ^ to escape the &.
and tests whether both expressions are logically True while & (when used with True/False values) tests if both are True. In Python, empty built-in objects are typically treated as logically False while non-empty built-ins are logically True. This facilitates the common use case where you want to do something if a list is empty and … Read more
When your XML contains &, this will result in the text &. When you use that in HTML, that will be rendered as &.