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[/] [openrisc/] [tags/] [gnu-src/] [gdb-7.2/] [gdb-7.2-or32-1.0rc3/] [libdecnumber/] [bid/] [decimal128.c] - Rev 330
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/* Copyright (C) 2007, 2009 Free Software Foundation, Inc. This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. Under Section 7 of GPL version 3, you are granted additional permissions described in the GCC Runtime Library Exception, version 3.1, as published by the Free Software Foundation. You should have received a copy of the GNU General Public License and a copy of the GCC Runtime Library Exception along with this program; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see <http://www.gnu.org/licenses/>. */ #define decimal128FromString __dpd128FromString #define decimal128ToString __dpd128ToString #define decimal128ToEngString __dpd128ToEngString #define decimal128FromNumber __dpd128FromNumber #define decimal128ToNumber __dpd128ToNumber #include "dpd/decimal128.c" #undef decimal128FromString #undef decimal128ToString #undef decimal128ToEngString #undef decimal128FromNumber #undef decimal128ToNumber #include "bid-dpd.h" #ifdef IN_LIBGCC2 #define decimal128FromString __decimal128FromString #define decimal128ToString __decimal128ToString #define decimal128ToEngString __decimal128ToEngString #define decimal128FromNumber __decimal128FromNumber #define decimal128ToNumber __decimal128ToNumber #endif decimal128 *decimal128FromString (decimal128 *, const char *, decContext *); char *decimal128ToString (const decimal128 *, char *); char *decimal128ToEngString (const decimal128 *, char *); decimal128 *decimal128FromNumber (decimal128 *, const decNumber *, decContext *); decNumber *decimal128ToNumber (const decimal128 *, decNumber *); void __host_to_ieee_128 (_Decimal128 in, decimal128 *out); void __ieee_to_host_128 (decimal128 in, _Decimal128 *out); decimal128 * decimal128FromNumber (decimal128 *d128, const decNumber *dn, decContext *set) { /* decimal128 and _Decimal128 are different types. */ union { _Decimal128 _Dec; decimal128 dec; } u; __dpd128FromNumber (d128, dn, set); /* __dpd128FromNumber returns in big endian. But _dpd_to_bid128 takes host endian. */ __ieee_to_host_128 (*d128, &u._Dec); /* Convert DPD to BID. */ _dpd_to_bid128 (&u._Dec, &u._Dec); /* dfp.c is in bid endian. */ __host_to_ieee_128 (u._Dec, &u.dec); /* d128 is returned as a pointer to _Decimal128 here. */ *d128 = u.dec; return d128; } decNumber * decimal128ToNumber (const decimal128 *bid128, decNumber *dn) { /* decimal128 and _Decimal128 are different types. */ union { _Decimal128 _Dec; decimal128 dec; } u; /* bid128 is a pointer to _Decimal128 in bid endian. But _bid_to_dpd128 takes host endian. */ __ieee_to_host_128 (*bid128, &u._Dec); /* Convert BID to DPD. */ _bid_to_dpd128 (&u._Dec, &u._Dec); /* __dpd128ToNumber is in bid endian. */ __host_to_ieee_128 (u._Dec, &u.dec); return __dpd128ToNumber (&u.dec, dn); } char * decimal128ToString (const decimal128 *d128, char *string) { decNumber dn; /* work */ decimal128ToNumber (d128, &dn); decNumberToString (&dn, string); return string; } char * decimal128ToEngString (const decimal128 *d128, char *string) { decNumber dn; /* work */ decimal128ToNumber (d128, &dn); decNumberToEngString (&dn, string); return string; } decimal128 * decimal128FromString (decimal128 *result, const char *string, decContext *set) { decContext dc; /* work */ decNumber dn; /* .. */ decContextDefault (&dc, DEC_INIT_DECIMAL128); /* no traps, please */ dc.round = set->round; /* use supplied rounding */ decNumberFromString (&dn, string, &dc); /* will round if needed */ decimal128FromNumber (result, &dn, &dc); if (dc.status != 0) { /* something happened */ decContextSetStatus (set, dc.status); /* .. pass it on */ } return result; }
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