/* * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands. * See the copyright notice in the ACK home directory, in the file "Copyright". */ /* $Id$ */ /* COMPILER ARITHMETIC */ /* Normally the compiler does its internal arithmetics in longs native to the source machine, which is always good for local compilations, and generally OK too for cross compilations downwards and sidewards. For upwards cross compilation and to save storage on small machines, SPECIAL_ARITHMETICS will be handy. */ #include "spec_arith.h" #ifndef SPECIAL_ARITHMETICS #include /* obtain definition of "arith" */ #else /* SPECIAL_ARITHMETICS */ /* All preprocessor arithmetic should be done in longs. */ #define arith long /* dummy */ #endif /* SPECIAL_ARITHMETICS */ #define arith_size (sizeof(arith)) #define arith_sign ((arith) 1 << (arith_size * 8 - 1)) #define max_arith (~arith_sign)