a header file that defines a macro named SIZE as an abbreviation for the token 1024. a header file that defines a macro named PI as an abbreviation for the token 3.14159265359. a program that prints the name of the file it was compiled from, followed by a new line. a function-like macro ABS(x) that computes the absolute value of a number x. a function-like macro SUM(x, y) that computes the sum of the numbers x and y.