| 1 | /* Copyright (C) 2007 |
| 2 | Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GCC. |
| 5 | |
| 6 | GCC is free software; you can redistribute it and/or modify it under |
| 7 | the terms of the GNU General Public License as published by the Free |
| 8 | Software Foundation; either version 2, or (at your option) any later |
| 9 | version. |
| 10 | |
| 11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
| 12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GCC; see the file COPYING. If not, write to the Free |
| 18 | Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA |
| 19 | 02110-1301, USA. */ |
| 20 | |
| 21 | /* As a special exception, if you link this library with other files, |
| 22 | some of which are compiled with GCC, to produce an executable, |
| 23 | this library does not by itself cause the resulting executable |
| 24 | to be covered by the GNU General Public License. |
| 25 | This exception does not however invalidate any other reasons why |
| 26 | the executable file might be covered by the GNU General Public License. */ |
| 27 | |
| 28 | #define decimal64FromString __dpd64FromString |
| 29 | #define decimal64ToString __dpd64ToString |
| 30 | #define decimal64ToEngString __dpd64ToEngString |
| 31 | #define decimal64FromNumber __dpd64FromNumber |
| 32 | #define decimal64ToNumber __dpd64ToNumber |
| 33 | |
| 34 | #include "dpd/decimal64.c" |
| 35 | |
| 36 | #undef decimal64FromString |
| 37 | #undef decimal64ToString |
| 38 | #undef decimal64ToEngString |
| 39 | #undef decimal64FromNumber |
| 40 | #undef decimal64ToNumber |
| 41 | |
| 42 | #include "bid-dpd.h" |
| 43 | |
| 44 | #ifdef IN_LIBGCC2 |
| 45 | #define decimal64FromString __decimal64FromString |
| 46 | #define decimal64ToString __decimal64ToString |
| 47 | #define decimal64ToEngString __decimal64ToEngString |
| 48 | #define decimal64FromNumber __decimal64FromNumber |
| 49 | #define decimal64ToNumber __decimal64ToNumber |
| 50 | #endif |
| 51 | |
| 52 | decimal64 *decimal64FromString (decimal64 *, const char *, decContext *); |
| 53 | char *decimal64ToString (const decimal64 *, char *); |
| 54 | char *decimal64ToEngString (const decimal64 *, char *); |
| 55 | decimal64 *decimal64FromNumber (decimal64 *, const decNumber *, decContext *); |
| 56 | decNumber *decimal64ToNumber (const decimal64 *, decNumber *); |
| 57 | |
| 58 | void __host_to_ieee_64 (_Decimal64 in, decimal64 *out); |
| 59 | void __ieee_to_host_64 (decimal64 in, _Decimal64 *out); |
| 60 | |
| 61 | decimal64 * |
| 62 | decimal64FromNumber (decimal64 *d64, const decNumber *dn, |
| 63 | decContext *set) |
| 64 | { |
| 65 | /* decimal64 and _Decimal64 are different types. */ |
| 66 | union |
| 67 | { |
| 68 | _Decimal64 _Dec; |
| 69 | decimal64 dec; |
| 70 | } u; |
| 71 | |
| 72 | __dpd64FromNumber (d64, dn, set); |
| 73 | |
| 74 | /* __dpd64FromNumber returns in big endian. But _dpd_to_bid64 takes |
| 75 | host endian. */ |
| 76 | __ieee_to_host_64 (*d64, &u._Dec); |
| 77 | |
| 78 | /* Convert DPD to BID. */ |
| 79 | _dpd_to_bid64 (&u._Dec, &u._Dec); |
| 80 | |
| 81 | /* dfp.c is in bid endian. */ |
| 82 | __host_to_ieee_64 (u._Dec, &u.dec); |
| 83 | |
| 84 | /* d64 is returned as a pointer to _Decimal64 here. */ |
| 85 | *d64 = u.dec; |
| 86 | |
| 87 | return d64; |
| 88 | } |
| 89 | |
| 90 | decNumber * |
| 91 | decimal64ToNumber (const decimal64 *bid64, decNumber *dn) |
| 92 | { |
| 93 | /* decimal64 and _Decimal64 are different types. */ |
| 94 | union |
| 95 | { |
| 96 | _Decimal64 _Dec; |
| 97 | decimal64 dec; |
| 98 | } u; |
| 99 | |
| 100 | /* bid64 is a pointer to _Decimal64 in bid endian. But _bid_to_dpd64 |
| 101 | takes host endian. */ |
| 102 | __ieee_to_host_64 (*bid64, &u._Dec); |
| 103 | |
| 104 | /* Convert BID to DPD. */ |
| 105 | _bid_to_dpd64 (&u._Dec, &u._Dec); |
| 106 | |
| 107 | /* __dpd64ToNumber is in bid endian. */ |
| 108 | __host_to_ieee_64 (u._Dec, &u.dec); |
| 109 | |
| 110 | return __dpd64ToNumber (&u.dec, dn); |
| 111 | } |
| 112 | |
| 113 | char * |
| 114 | decimal64ToString (const decimal64 *d64, char *string) |
| 115 | { |
| 116 | decNumber dn; /* work */ |
| 117 | decimal64ToNumber (d64, &dn); |
| 118 | decNumberToString (&dn, string); |
| 119 | return string; |
| 120 | } |
| 121 | |
| 122 | char * |
| 123 | decimal64ToEngString (const decimal64 *d64, char *string) |
| 124 | { |
| 125 | decNumber dn; /* work */ |
| 126 | decimal64ToNumber (d64, &dn); |
| 127 | decNumberToEngString (&dn, string); |
| 128 | return string; |
| 129 | } |
| 130 | |
| 131 | decimal64 * |
| 132 | decimal64FromString (decimal64 *result, const char *string, |
| 133 | decContext *set) |
| 134 | { |
| 135 | decContext dc; /* work */ |
| 136 | decNumber dn; /* .. */ |
| 137 | |
| 138 | decContextDefault (&dc, DEC_INIT_DECIMAL64); /* no traps, please */ |
| 139 | dc.round = set->round; /* use supplied rounding */ |
| 140 | |
| 141 | decNumberFromString (&dn, string, &dc); /* will round if needed */ |
| 142 | decimal64FromNumber (result, &dn, &dc); |
| 143 | if (dc.status != 0) |
| 144 | { /* something happened */ |
| 145 | decContextSetStatus (set, dc.status); /* .. pass it on */ |
| 146 | } |
| 147 | return result; |
| 148 | } |