This file returns all of the tokens parsed by Flex to be used in the Bison grammar rules of file parser.y It also contains a function called LU_suffix. The information below assumes the user has basic knowledge of Flex and Bison.
This function is used to determine whether a hex, decimal or octal constant is signed and/or long.
Note: yylval.lln is defined as "long long lln;" in %union of parser.y
Since this file is used in conjunction with parser.y, study parser.y