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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.1/] [libdecnumber/] [bid/] [decimal32.c] - Rev 247
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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 decimal32FromString __dpd32FromString #define decimal32ToString __dpd32ToString #define decimal32ToEngString __dpd32ToEngString #define decimal32FromNumber __dpd32FromNumber #define decimal32ToNumber __dpd32ToNumber #include "dpd/decimal32.c" #undef decimal32FromString #undef decimal32ToString #undef decimal32ToEngString #undef decimal32FromNumber #undef decimal32ToNumber #include "bid-dpd.h" #ifdef IN_LIBGCC2 #define decimal32FromString __decimal32FromString #define decimal32ToString __decimal32ToString #define decimal32ToEngString __decimal32ToEngString #define decimal32FromNumber __decimal32FromNumber #define decimal32ToNumber __decimal32ToNumber #endif decimal32 *decimal32FromString (decimal32 *, const char *, decContext *); char *decimal32ToString (const decimal32 *, char *); char *decimal32ToEngString (const decimal32 *, char *); decimal32 *decimal32FromNumber (decimal32 *, const decNumber *, decContext *); decNumber *decimal32ToNumber (const decimal32 *, decNumber *); void __host_to_ieee_32 (_Decimal32 in, decimal32 *out); void __ieee_to_host_32 (decimal32 in, _Decimal32 *out); decimal32 * decimal32FromNumber (decimal32 *d32, const decNumber *dn, decContext *set) { /* decimal32 and _Decimal32 are different types. */ union { _Decimal32 _Dec; decimal32 dec; } u; __dpd32FromNumber (d32, dn, set); /* __dpd32FromNumber returns in big endian. But _dpd_to_bid32 takes host endian. */ __ieee_to_host_32 (*d32, &u._Dec); /* Convert DPD to BID. */ _dpd_to_bid32 (&u._Dec, &u._Dec); /* dfp.c is in bid endian. */ __host_to_ieee_32 (u._Dec, &u.dec); /* d32 is returned as a pointer to _Decimal32 here. */ *d32 = u.dec; return d32; } decNumber * decimal32ToNumber (const decimal32 *bid32, decNumber *dn) { /* decimal32 and _Decimal32 are different types. */ union { _Decimal32 _Dec; decimal32 dec; } u; /* bid32 is a pointer to _Decimal32 in bid endian. But _bid_to_dpd32 takes host endian. */ __ieee_to_host_32 (*bid32, &u._Dec); /* Convert BID to DPD. */ _bid_to_dpd32 (&u._Dec, &u._Dec); /* __dpd32ToNumber is in bid endian. */ __host_to_ieee_32 (u._Dec, &u.dec); return __dpd32ToNumber (&u.dec, dn); } char * decimal32ToString (const decimal32 *d32, char *string) { decNumber dn; /* work */ decimal32ToNumber (d32, &dn); decNumberToString (&dn, string); return string; } char * decimal32ToEngString (const decimal32 *d32, char *string) { decNumber dn; /* work */ decimal32ToNumber (d32, &dn); decNumberToEngString (&dn, string); return string; } decimal32 * decimal32FromString (decimal32 *result, const char *string, decContext *set) { decContext dc; /* work */ decNumber dn; /* .. */ decContextDefault (&dc, DEC_INIT_DECIMAL32); /* no traps, please */ dc.round = set->round; /* use supplied rounding */ decNumberFromString (&dn, string, &dc); /* will round if needed */ decimal32FromNumber (result, &dn, &dc); if (dc.status != 0) { /* something happened */ decContextSetStatus (set, dc.status); /* .. pass it on */ } return result; }
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