2 * (c) copyright 1989 by the Vrije Universiteit, Amsterdam, The Netherlands.
3 * See the copyright notice in the ACK home directory, in the file "Copyright".
5 /* $Id: flt_arith.h,v 1.8 1994/06/24 11:15:40 ceriel Exp $ */
7 #ifndef __FLT_INCLUDED__
8 #define __FLT_INCLUDED__
17 long flt_h_32; /* high order 32 bits of mantissa */
18 long flt_l_32; /* low order 32 bits of mantissa */
21 typedef struct flt_arith {
22 short flt_sign; /* 0 for positive, 1 for negative */
23 short flt_exp; /* between -16384 and 16384 */
24 struct flt_mantissa flt_mantissa; /* normalized, in [1,2). */
27 extern int flt_status;
34 #define FLT_STRLEN 32 /* max length of result of flt_flt2str() */
36 _PROTOTYPE(void flt_add, (flt_arith *, flt_arith *, flt_arith *));
37 _PROTOTYPE(void flt_sub, (flt_arith *, flt_arith *, flt_arith *));
38 _PROTOTYPE(void flt_mul, (flt_arith *, flt_arith *, flt_arith *));
39 _PROTOTYPE(void flt_div, (flt_arith *, flt_arith *, flt_arith *));
40 _PROTOTYPE(void flt_modf, (flt_arith *, flt_arith *, flt_arith *));
41 _PROTOTYPE(int flt_cmp, (flt_arith *, flt_arith *));
42 _PROTOTYPE(void flt_str2flt, (char *, flt_arith *));
43 _PROTOTYPE(void flt_flt2str, (flt_arith *, char *, int));
44 _PROTOTYPE(void flt_arith2flt, (arith, flt_arith *, int));
45 _PROTOTYPE(arith flt_flt2arith, (flt_arith *, int));
46 _PROTOTYPE(void flt_b64_sft, (struct flt_mantissa *, int));
47 _PROTOTYPE(void flt_umin, (flt_arith *));
49 #endif /* __FLT_INCLUDED__ */