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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-6.8/] [libdecnumber/] [bid/] [decimal32.c] - Blame information for rev 816

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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 decimal32FromString __dpd32FromString
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#define decimal32ToString __dpd32ToString
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#define decimal32ToEngString __dpd32ToEngString
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#define decimal32FromNumber __dpd32FromNumber
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#define decimal32ToNumber __dpd32ToNumber
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#include "dpd/decimal32.c"
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#undef decimal32FromString
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#undef decimal32ToString
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#undef decimal32ToEngString
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#undef decimal32FromNumber
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#undef decimal32ToNumber
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#include "bid-dpd.h"
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#ifdef IN_LIBGCC2
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#define decimal32FromString __decimal32FromString
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#define decimal32ToString __decimal32ToString
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#define decimal32ToEngString __decimal32ToEngString
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#define decimal32FromNumber __decimal32FromNumber
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#define decimal32ToNumber __decimal32ToNumber
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#endif
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decimal32 *decimal32FromString (decimal32 *, const char *, decContext *);
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char *decimal32ToString (const decimal32 *, char *);
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char *decimal32ToEngString (const decimal32 *, char *);
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decimal32 *decimal32FromNumber (decimal32 *, const decNumber *, decContext *);
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decNumber *decimal32ToNumber (const decimal32 *, decNumber *);
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void __host_to_ieee_32 (_Decimal32 in, decimal32 *out);
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void __ieee_to_host_32 (decimal32 in, _Decimal32 *out);
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decimal32 *
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decimal32FromNumber (decimal32 *d32, const decNumber *dn,
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                      decContext *set)
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{
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  /* decimal32 and _Decimal32 are different types.  */
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  union
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    {
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      _Decimal32 _Dec;
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      decimal32 dec;
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    } u;
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  __dpd32FromNumber (d32, dn, set);
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  /* __dpd32FromNumber returns in big endian. But _dpd_to_bid32 takes
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     host endian. */
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  __ieee_to_host_32 (*d32, &u._Dec);
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  /* Convert DPD to BID.  */
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  _dpd_to_bid32 (&u._Dec, &u._Dec);
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  /* dfp.c is in bid endian. */
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  __host_to_ieee_32 (u._Dec, &u.dec);
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  /* d32 is returned as a pointer to _Decimal32 here.  */
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  *d32 = u.dec;
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  return d32;
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}
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decNumber *
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decimal32ToNumber (const decimal32 *bid32, decNumber *dn)
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{
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  /* decimal32 and _Decimal32 are different types.  */
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  union
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    {
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      _Decimal32 _Dec;
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      decimal32 dec;
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    } u;
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  /* bid32 is a pointer to _Decimal32 in bid endian. But _bid_to_dpd32
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     takes host endian.  */
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  __ieee_to_host_32 (*bid32, &u._Dec);
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  /* Convert BID to DPD.  */
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  _bid_to_dpd32 (&u._Dec, &u._Dec);
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  /* __dpd32ToNumber is in bid endian.  */
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  __host_to_ieee_32 (u._Dec, &u.dec);
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  return __dpd32ToNumber (&u.dec, dn);
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}
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char *
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decimal32ToString (const decimal32 *d32, char *string)
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{
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  decNumber dn;                 /* work */
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  decimal32ToNumber (d32, &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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decimal32ToEngString (const decimal32 *d32, char *string)
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{
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  decNumber dn;                 /* work */
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  decimal32ToNumber (d32, &dn);
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  decNumberToEngString (&dn, string);
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  return string;
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}
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decimal32 *
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decimal32FromString (decimal32 *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_DECIMAL32);  /* 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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  decimal32FromNumber (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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