1/* Copyright (C) 2007-2018 Free Software Foundation, Inc. 2 3This file is part of GCC. 4 5GCC is free software; you can redistribute it and/or modify it under 6the terms of the GNU General Public License as published by the Free 7Software Foundation; either version 3, or (at your option) any later 8version. 9 10GCC is distributed in the hope that it will be useful, but WITHOUT ANY 11WARRANTY; without even the implied warranty of MERCHANTABILITY or 12FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13for more details. 14 15Under Section 7 of GPL version 3, you are granted additional 16permissions described in the GCC Runtime Library Exception, version 173.1, as published by the Free Software Foundation. 18 19You should have received a copy of the GNU General Public License and 20a copy of the GCC Runtime Library Exception along with this program; 21see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 22<http://www.gnu.org/licenses/>. */ 23 24#define decimal32FromString __dpd32FromString 25#define decimal32ToString __dpd32ToString 26#define decimal32ToEngString __dpd32ToEngString 27#define decimal32FromNumber __dpd32FromNumber 28#define decimal32ToNumber __dpd32ToNumber 29 30#include "dpd/decimal32.c" 31 32#undef decimal32FromString 33#undef decimal32ToString 34#undef decimal32ToEngString 35#undef decimal32FromNumber 36#undef decimal32ToNumber 37 38#include "bid-dpd.h" 39 40#ifdef IN_LIBGCC2 41#define decimal32FromString __decimal32FromString 42#define decimal32ToString __decimal32ToString 43#define decimal32ToEngString __decimal32ToEngString 44#define decimal32FromNumber __decimal32FromNumber 45#define decimal32ToNumber __decimal32ToNumber 46#endif 47 48decimal32 *decimal32FromString (decimal32 *, const char *, decContext *); 49char *decimal32ToString (const decimal32 *, char *); 50char *decimal32ToEngString (const decimal32 *, char *); 51decimal32 *decimal32FromNumber (decimal32 *, const decNumber *, decContext *); 52decNumber *decimal32ToNumber (const decimal32 *, decNumber *); 53 54void __host_to_ieee_32 (_Decimal32 in, decimal32 *out); 55void __ieee_to_host_32 (decimal32 in, _Decimal32 *out); 56 57decimal32 * 58decimal32FromNumber (decimal32 *d32, const decNumber *dn, 59 decContext *set) 60{ 61 /* decimal32 and _Decimal32 are different types. */ 62 union 63 { 64 _Decimal32 _Dec; 65 decimal32 dec; 66 } u; 67 68 __dpd32FromNumber (d32, dn, set); 69 70 /* __dpd32FromNumber returns in big endian. But _dpd_to_bid32 takes 71 host endian. */ 72 __ieee_to_host_32 (*d32, &u._Dec); 73 74 /* Convert DPD to BID. */ 75 _dpd_to_bid32 (&u._Dec, &u._Dec); 76 77 /* dfp.c is in bid endian. */ 78 __host_to_ieee_32 (u._Dec, &u.dec); 79 80 /* d32 is returned as a pointer to _Decimal32 here. */ 81 *d32 = u.dec; 82 83 return d32; 84} 85 86decNumber * 87decimal32ToNumber (const decimal32 *bid32, decNumber *dn) 88{ 89 /* decimal32 and _Decimal32 are different types. */ 90 union 91 { 92 _Decimal32 _Dec; 93 decimal32 dec; 94 } u; 95 96 /* bid32 is a pointer to _Decimal32 in bid endian. But _bid_to_dpd32 97 takes host endian. */ 98 __ieee_to_host_32 (*bid32, &u._Dec); 99 100 /* Convert BID to DPD. */ 101 _bid_to_dpd32 (&u._Dec, &u._Dec); 102 103 /* __dpd32ToNumber is in bid endian. */ 104 __host_to_ieee_32 (u._Dec, &u.dec); 105 106 return __dpd32ToNumber (&u.dec, dn); 107} 108 109char * 110decimal32ToString (const decimal32 *d32, char *string) 111{ 112 decNumber dn; /* work */ 113 decimal32ToNumber (d32, &dn); 114 decNumberToString (&dn, string); 115 return string; 116} 117 118char * 119decimal32ToEngString (const decimal32 *d32, char *string) 120{ 121 decNumber dn; /* work */ 122 decimal32ToNumber (d32, &dn); 123 decNumberToEngString (&dn, string); 124 return string; 125} 126 127decimal32 * 128decimal32FromString (decimal32 *result, const char *string, 129 decContext *set) 130{ 131 decContext dc; /* work */ 132 decNumber dn; /* .. */ 133 134 decContextDefault (&dc, DEC_INIT_DECIMAL32); /* no traps, please */ 135 dc.round = set->round; /* use supplied rounding */ 136 137 decNumberFromString (&dn, string, &dc); /* will round if needed */ 138 decimal32FromNumber (result, &dn, &dc); 139 if (dc.status != 0) 140 { /* something happened */ 141 decContextSetStatus (set, dc.status); /* .. pass it on */ 142 } 143 return result; 144} 145