1234567891011121314151617181920212223242526272829303132 |
- /*
- * (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 <em_arith.h> /* 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)
|