The most common alternative to #pragma once is to use #define to set an include guard macro, the name of which is picked by the programmer to be unique to that file. For example, #ifndef GRANDPARENT_H #define GRANDPARENT_H ... contents of grandparent.h #endif /* !GRANDPARENT_H */.
1 Costco is three years old and has 17 locations, 1.3 million members, and 3,740 employees.  Costco's first Pharmacy opens in Portland, Oregon and the Tukwila, WA warehouse becomes the house of the company's first fresh meat department.
Revenue isn't the only measure of success when it comes to fast food chains -- they also compete for size and reach. Here are the biggest QSRs in the U.S., by number of locations: Subway, 24,722; McDonaldâs, 14,098; Starbucks, 10,821; Pizza Hut, 7,600; Burger King, 7,231; Dunkinâ Donuts, 7,015; Wendyâs, 6,594; Dairy Queen, 6,187; Taco Bell, 5,670