What may be found where groundwater erodes limestone to form valleys sinkholes and caverns? What may be found where groundwater erodes limestone to form valleys sinkholes and caverns Edit
January 29, 2011. The ampersand (&) is a symbol for and. Unlike the percent or degree symbol, you generally shouldn't use the ampersand except in the most informal situations. Some style guides allow ampersands as part of a formal company name (Smith & Wesson, Tiffany & Co.). Other style guides recommend spelling out the and in such cases. Most style guides recommend using the ampersand when the rest of the name is also an abbreviation (AT&T) and in common expressions (R&D). As you see here, there are no spaces on either side of the ampersand when it is used that way.
up vote 1 down vote. The ampersand is used in two different meanings in C++: obtaining an address of something (e.g. of a variable or a function) and specifying a variable or function parameter to be a reference to an entity defined somewhere else. In your example, the latter meaning is in use.p vote 11 down vote accepted. In that context, the & makes the variable a reference. Usually, when you pass an variable to a function, the variable is copied and the function works on the copy. When the function returns, your original variable is unchanged.