1/* Copyright (C) 2007, 2009 2 Free Software Foundation, Inc. 3 4This file is part of GCC. 5 6GCC is free software; you can redistribute it and/or modify it under 7the terms of the GNU General Public License as published by the Free 8Software Foundation; either version 3, or (at your option) any later 9version. 10 11GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12WARRANTY; without even the implied warranty of MERCHANTABILITY or 13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14for more details. 15 16Under Section 7 of GPL version 3, you are granted additional 17permissions described in the GCC Runtime Library Exception, version 183.1, as published by the Free Software Foundation. 19 20You should have received a copy of the GNU General Public License and 21a copy of the GCC Runtime Library Exception along with this program; 22see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23<http://www.gnu.org/licenses/>. */ 24 25#define decimal32FromString __dpd32FromString 26#define decimal32ToString __dpd32ToString 27#define decimal32ToEngString __dpd32ToEngString 28#define decimal32FromNumber __dpd32FromNumber 29#define decimal32ToNumber __dpd32ToNumber 30 31#include "dpd/decimal32.c" 32 33#undef decimal32FromString 34#undef decimal32ToString 35#undef decimal32ToEngString 36#undef decimal32FromNumber 37#undef decimal32ToNumber 38 39#include "bid-dpd.h" 40 41#ifdef IN_LIBGCC2 42#define decimal32FromString __decimal32FromString 43#define decimal32ToString __decimal32ToString 44#define decimal32ToEngString __decimal32ToEngString 45#define decimal32FromNumber __decimal32FromNumber 46#define decimal32ToNumber __decimal32ToNumber 47#endif 48 49decimal32 *decimal32FromString (decimal32 *, const char *, decContext *); 50char *decimal32ToString (const decimal32 *, char *); 51char *decimal32ToEngString (const decimal32 *, char *); 52decimal32 *decimal32FromNumber (decimal32 *, const decNumber *, decContext *); 53decNumber *decimal32ToNumber (const decimal32 *, decNumber *); 54 55void __host_to_ieee_32 (_Decimal32 in, decimal32 *out); 56void __ieee_to_host_32 (decimal32 in, _Decimal32 *out); 57 58decimal32 * 59decimal32FromNumber (decimal32 *d32, const decNumber *dn, 60 decContext *set) 61{ 62 /* decimal32 and _Decimal32 are different types. */ 63 union 64 { 65 _Decimal32 _Dec; 66 decimal32 dec; 67 } u; 68 69 __dpd32FromNumber (d32, dn, set); 70 71 /* __dpd32FromNumber returns in big endian. But _dpd_to_bid32 takes 72 host endian. */ 73 __ieee_to_host_32 (*d32, &u._Dec); 74 75 /* Convert DPD to BID. */ 76 _dpd_to_bid32 (&u._Dec, &u._Dec); 77 78 /* dfp.c is in bid endian. */ 79 __host_to_ieee_32 (u._Dec, &u.dec); 80 81 /* d32 is returned as a pointer to _Decimal32 here. */ 82 *d32 = u.dec; 83 84 return d32; 85} 86 87decNumber * 88decimal32ToNumber (const decimal32 *bid32, decNumber *dn) 89{ 90 /* decimal32 and _Decimal32 are different types. */ 91 union 92 { 93 _Decimal32 _Dec; 94 decimal32 dec; 95 } u; 96 97 /* bid32 is a pointer to _Decimal32 in bid endian. But _bid_to_dpd32 98 takes host endian. */ 99 __ieee_to_host_32 (*bid32, &u._Dec); 100 101 /* Convert BID to DPD. */ 102 _bid_to_dpd32 (&u._Dec, &u._Dec); 103 104 /* __dpd32ToNumber is in bid endian. */ 105 __host_to_ieee_32 (u._Dec, &u.dec); 106 107 return __dpd32ToNumber (&u.dec, dn); 108} 109 110char * 111decimal32ToString (const decimal32 *d32, char *string) 112{ 113 decNumber dn; /* work */ 114 decimal32ToNumber (d32, &dn); 115 decNumberToString (&dn, string); 116 return string; 117} 118 119char * 120decimal32ToEngString (const decimal32 *d32, char *string) 121{ 122 decNumber dn; /* work */ 123 decimal32ToNumber (d32, &dn); 124 decNumberToEngString (&dn, string); 125 return string; 126} 127 128decimal32 * 129decimal32FromString (decimal32 *result, const char *string, 130 decContext *set) 131{ 132 decContext dc; /* work */ 133 decNumber dn; /* .. */ 134 135 decContextDefault (&dc, DEC_INIT_DECIMAL32); /* no traps, please */ 136 dc.round = set->round; /* use supplied rounding */ 137 138 decNumberFromString (&dn, string, &dc); /* will round if needed */ 139 decimal32FromNumber (result, &dn, &dc); 140 if (dc.status != 0) 141 { /* something happened */ 142 decContextSetStatus (set, dc.status); /* .. pass it on */ 143 } 144 return result; 145} 146