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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [libdecnumber/] [bid/] [decimal64.c] - Blame information for rev 294

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Line No. Rev Author Line
1 24 jeremybenn
/* Copyright (C) 2007
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   Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING.  If not, write to the Free
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Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301, USA.  */
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/* As a special exception, if you link this library with other files,
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   some of which are compiled with GCC, to produce an executable,
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   this library does not by itself cause the resulting executable
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   to be covered by the GNU General Public License.
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   This exception does not however invalidate any other reasons why
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   the executable file might be covered by the GNU General Public License.  */
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#define decimal64FromString __dpd64FromString
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#define decimal64ToString __dpd64ToString
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#define decimal64ToEngString __dpd64ToEngString
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#define decimal64FromNumber __dpd64FromNumber
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#define decimal64ToNumber __dpd64ToNumber
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#include "dpd/decimal64.c"
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#undef decimal64FromString
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#undef decimal64ToString
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#undef decimal64ToEngString
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#undef decimal64FromNumber
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#undef decimal64ToNumber
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#include "bid-dpd.h"
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#ifdef IN_LIBGCC2
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#define decimal64FromString __decimal64FromString
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#define decimal64ToString __decimal64ToString
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#define decimal64ToEngString __decimal64ToEngString
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#define decimal64FromNumber __decimal64FromNumber
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#define decimal64ToNumber __decimal64ToNumber
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#endif
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decimal64 *decimal64FromString (decimal64 *, const char *, decContext *);
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char *decimal64ToString (const decimal64 *, char *);
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char *decimal64ToEngString (const decimal64 *, char *);
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decimal64 *decimal64FromNumber (decimal64 *, const decNumber *, decContext *);
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decNumber *decimal64ToNumber (const decimal64 *, decNumber *);
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void __host_to_ieee_64 (_Decimal64 in, decimal64 *out);
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void __ieee_to_host_64 (decimal64 in, _Decimal64 *out);
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decimal64 *
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decimal64FromNumber (decimal64 *d64, const decNumber *dn,
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                      decContext *set)
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{
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  /* decimal64 and _Decimal64 are different types.  */
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  union
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    {
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      _Decimal64 _Dec;
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      decimal64 dec;
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    } u;
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  __dpd64FromNumber (d64, dn, set);
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  /* __dpd64FromNumber returns in big endian. But _dpd_to_bid64 takes
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     host endian. */
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  __ieee_to_host_64 (*d64, &u._Dec);
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  /* Convert DPD to BID.  */
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  _dpd_to_bid64 (&u._Dec, &u._Dec);
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  /* dfp.c is in bid endian. */
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  __host_to_ieee_64 (u._Dec, &u.dec);
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  /* d64 is returned as a pointer to _Decimal64 here.  */
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  *d64 = u.dec;
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  return d64;
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}
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decNumber *
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decimal64ToNumber (const decimal64 *bid64, decNumber *dn)
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{
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  /* decimal64 and _Decimal64 are different types.  */
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  union
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    {
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      _Decimal64 _Dec;
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      decimal64 dec;
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    } u;
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  /* bid64 is a pointer to _Decimal64 in bid endian. But _bid_to_dpd64
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     takes host endian.  */
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  __ieee_to_host_64 (*bid64, &u._Dec);
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  /* Convert BID to DPD.  */
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  _bid_to_dpd64 (&u._Dec, &u._Dec);
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  /* __dpd64ToNumber is in bid endian.  */
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  __host_to_ieee_64 (u._Dec, &u.dec);
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  return __dpd64ToNumber (&u.dec, dn);
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}
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char *
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decimal64ToString (const decimal64 *d64, char *string)
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{
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  decNumber dn;                 /* work */
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  decimal64ToNumber (d64, &dn);
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  decNumberToString (&dn, string);
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  return string;
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}
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char *
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decimal64ToEngString (const decimal64 *d64, char *string)
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{
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  decNumber dn;                 /* work */
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  decimal64ToNumber (d64, &dn);
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  decNumberToEngString (&dn, string);
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  return string;
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}
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decimal64 *
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decimal64FromString (decimal64 *result, const char *string,
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                      decContext *set)
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{
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  decContext dc;                /* work */
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  decNumber dn;                 /* .. */
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  decContextDefault (&dc, DEC_INIT_DECIMAL64);  /* no traps, please */
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  dc.round = set->round;        /* use supplied rounding */
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  decNumberFromString (&dn, string, &dc);       /* will round if needed */
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  decimal64FromNumber (result, &dn, &dc);
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  if (dc.status != 0)
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    {                           /* something happened */
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      decContextSetStatus (set, dc.status);     /* .. pass it on */
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    }
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  return result;
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}

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