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 decimal64FromString __dpd64FromString 25#define decimal64ToString __dpd64ToString 26#define decimal64ToEngString __dpd64ToEngString 27#define decimal64FromNumber __dpd64FromNumber 28#define decimal64ToNumber __dpd64ToNumber 29 30#include "dpd/decimal64.c" 31 32#undef decimal64FromString 33#undef decimal64ToString 34#undef decimal64ToEngString 35#undef decimal64FromNumber 36#undef decimal64ToNumber 37 38#include "bid-dpd.h" 39 40#ifdef IN_LIBGCC2 41#define decimal64FromString __decimal64FromString 42#define decimal64ToString __decimal64ToString 43#define decimal64ToEngString __decimal64ToEngString 44#define decimal64FromNumber __decimal64FromNumber 45#define decimal64ToNumber __decimal64ToNumber 46#endif 47 48decimal64 *decimal64FromString (decimal64 *, const char *, decContext *); 49char *decimal64ToString (const decimal64 *, char *); 50char *decimal64ToEngString (const decimal64 *, char *); 51decimal64 *decimal64FromNumber (decimal64 *, const decNumber *, decContext *); 52decNumber *decimal64ToNumber (const decimal64 *, decNumber *); 53 54void __host_to_ieee_64 (_Decimal64 in, decimal64 *out); 55void __ieee_to_host_64 (decimal64 in, _Decimal64 *out); 56 57decimal64 * 58decimal64FromNumber (decimal64 *d64, const decNumber *dn, 59 decContext *set) 60{ 61 /* decimal64 and _Decimal64 are different types. */ 62 union 63 { 64 _Decimal64 _Dec; 65 decimal64 dec; 66 } u; 67 68 __dpd64FromNumber (d64, dn, set); 69 70 /* __dpd64FromNumber returns in big endian. But _dpd_to_bid64 takes 71 host endian. */ 72 __ieee_to_host_64 (*d64, &u._Dec); 73 74 /* Convert DPD to BID. */ 75 _dpd_to_bid64 (&u._Dec, &u._Dec); 76 77 /* dfp.c is in bid endian. */ 78 __host_to_ieee_64 (u._Dec, &u.dec); 79 80 /* d64 is returned as a pointer to _Decimal64 here. */ 81 *d64 = u.dec; 82 83 return d64; 84} 85 86decNumber * 87decimal64ToNumber (const decimal64 *bid64, decNumber *dn) 88{ 89 /* decimal64 and _Decimal64 are different types. */ 90 union 91 { 92 _Decimal64 _Dec; 93 decimal64 dec; 94 } u; 95 96 /* bid64 is a pointer to _Decimal64 in bid endian. But _bid_to_dpd64 97 takes host endian. */ 98 __ieee_to_host_64 (*bid64, &u._Dec); 99 100 /* Convert BID to DPD. */ 101 _bid_to_dpd64 (&u._Dec, &u._Dec); 102 103 /* __dpd64ToNumber is in bid endian. */ 104 __host_to_ieee_64 (u._Dec, &u.dec); 105 106 return __dpd64ToNumber (&u.dec, dn); 107} 108 109char * 110decimal64ToString (const decimal64 *d64, char *string) 111{ 112 decNumber dn; /* work */ 113 decimal64ToNumber (d64, &dn); 114 decNumberToString (&dn, string); 115 return string; 116} 117 118char * 119decimal64ToEngString (const decimal64 *d64, char *string) 120{ 121 decNumber dn; /* work */ 122 decimal64ToNumber (d64, &dn); 123 decNumberToEngString (&dn, string); 124 return string; 125} 126 127decimal64 * 128decimal64FromString (decimal64 *result, const char *string, 129 decContext *set) 130{ 131 decContext dc; /* work */ 132 decNumber dn; /* .. */ 133 134 decContextDefault (&dc, DEC_INIT_DECIMAL64); /* no traps, please */ 135 dc.round = set->round; /* use supplied rounding */ 136 137 decNumberFromString (&dn, string, &dc); /* will round if needed */ 138 decimal64FromNumber (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