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/* Copyright (C) 2007-2022 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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