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/* Functions to print the DPD declets for use with printf %Z
Copyright (C) 2006, 2007 IBM Corporation.
Copyright (C) 2007-2015 Free Software Foundation, Inc.
This file is part of the Decimal Floating Point C Library.
Author(s): Steve Munroe <sjmunroe@us.ibm.com>
Ryan S. Arnold <rsa@us.ibm.com>
The Decimal Floating Point C Library is free software; you can
redistribute it and/or modify it under the terms of the GNU Lesser
General Public License version 2.1.
The Decimal Floating Point C Library 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 Lesser General Public License version 2.1 for more details.
You should have received a copy of the GNU Lesser General Public
License version 2.1 along with the Decimal Floating Point C Library;
if not, write to the Free Software Foundation, Inc., 51 Franklin
Street, Fifth Floor, Boston, MA 02110-1301 USA.
Please see dfp/COPYING.txt for more information. */
#include <float.h>
#include <math.h>
#include <fenv.h>
#include <string.h>
#include <decode.h>
#include <dpd-private.h>
/* This version is used by all DPD implementations. */
#undef DEBUG_PRINT
#define DEBUG_PRINT 0
char * __decoded32 (_Decimal32 a, char * str)
{
union ieee754r_Decimal32 d;
struct ieee754r_c_field c_f;
int exp;
char sign;
char lmd;
const char *cc0;
const char *cc1;
char * after_exp = NULL;
d.sd = a;
if (d.ieee.negative)
sign = '-';
else
sign = '+';
c_f = c_decoder[d.ieee.c];
exp = c_f.lm_exp << DECIMAL32_BEC_bits;
exp += d.ieee.bec;
exp -= DECIMAL32_Bias;
lmd = '0' + c_f.lmd;
cc0 = &dpd_to_char[d.ieee.cc0][0];
cc1 = &dpd_to_char[d.ieee.cc1][0];
str[0] = sign;
str[1] = lmd;
str[2] = ',';
__dpd_cpydeclet(&str[3], cc0);
str[6] = ',';
__dpd_cpydeclet(&str[7], cc1);
str[10] = 'E';
after_exp = __dpd_exptostr(&str[11], exp);
if (after_exp != NULL)
*after_exp = '\0';
return str;
}
weak_alias (__decoded32, decoded32)
hidden_def(__decoded32)
char * __decoded64 ( _Decimal64 a, char * str )
{
union ieee754r_Decimal64 d;
struct ieee754r_c_field c_f;
int exp, i;
char sign;
char lmd;
const char *cc0;
const char *cc1;
const char *cc2;
const char *cc3;
const char *cc4;
char * after_exp = NULL;
d.dd = a;
if (d.ieee.negative)
sign = '-';
else
sign = '+';
c_f = c_decoder[d.ieee.c];
exp = c_f.lm_exp << DECIMAL64_BEC_bits;
exp += d.ieee.bec;
exp -= DECIMAL64_Bias;
lmd = '0' + c_f.lmd;
cc0 = &dpd_to_char[d.ieee.cc0][0];
/* Packed fields crossing a word boundary require special handling. */
i = d.ieee.cc1H8 << 2;
i = i + d.ieee.cc1L2;
cc1 = &dpd_to_char[i][0];
cc2 = &dpd_to_char[d.ieee.cc2][0];
cc3 = &dpd_to_char[d.ieee.cc3][0];
cc4 = &dpd_to_char[d.ieee.cc4][0];
str[0] = sign;
str[1] = lmd;
str[2] = ',';
__dpd_cpydeclet(&str[3], cc0);
str[6] = ',';
__dpd_cpydeclet(&str[7], cc1);
str[10] = ',';
__dpd_cpydeclet(&str[11], cc2);
str[14] = ',';
__dpd_cpydeclet(&str[15], cc3);
str[18] = ',';
__dpd_cpydeclet(&str[19], cc4);
str[22] = 'E';
after_exp = __dpd_exptostr(&str[23], exp);
if (after_exp != NULL)
*after_exp = '\0';
return str;
}
weak_alias (__decoded64, decoded64)
hidden_def(__decoded64)
char * __decoded128 ( _Decimal128 a, char * str )
{
union ieee754r_Decimal128 d;
struct ieee754r_c_field c_f;
int exp;/*, i; */
char sign;
char lmd;
const char *cc0;
const char *cc1;
const char *cc2;
const char *cc3;
const char *cc4;
const char *cc5;
const char *cc6;
const char *cc7;
const char *cc8;
const char *cc9;
const char *cc10;
char * after_exp = NULL;
d.td = a;
if (d.ieee.negative)
sign = '-';
else
sign = '+';
c_f = c_decoder[d.ieee.c];
exp = c_f.lm_exp << DECIMAL128_BEC_bits;
exp += d.ieee.bec;
exp -= DECIMAL128_Bias;
lmd = '0' + c_f.lmd;
cc0 = &dpd_to_char[d.ieee.cc0][0];
/* Packed fields crossing a word boundary require special handling. */
cc1 = &dpd_to_char[((d.ieee.cc1H4<<6) + d.ieee.cc1L6)][0];
cc2 = &dpd_to_char[d.ieee.cc2][0];
cc3 = &dpd_to_char[d.ieee.cc3][0];
cc4 = &dpd_to_char[((d.ieee.cc4H6<<4) + d.ieee.cc4L4)][0];
cc5 = &dpd_to_char[d.ieee.cc5][0];
cc6 = &dpd_to_char[d.ieee.cc6][0];
cc7 = &dpd_to_char[((d.ieee.cc7H8<<2) + d.ieee.cc7L2)][0];
cc8 = &dpd_to_char[d.ieee.cc8][0];
cc9 = &dpd_to_char[d.ieee.cc9][0];
cc10 = &dpd_to_char[d.ieee.cc10][0];
str[0] = sign;
str[1] = lmd;
str[2] = ',';
__dpd_cpydeclet(&str[3], cc0);
str[6] = ',';
__dpd_cpydeclet(&str[7], cc1);
str[10] = ',';
__dpd_cpydeclet(&str[11], cc2);
str[14] = ',';
__dpd_cpydeclet(&str[15], cc3);
str[18] = ',';
__dpd_cpydeclet(&str[19], cc4);
str[22] = ',';
__dpd_cpydeclet(&str[23], cc5);
str[26] = ',';
__dpd_cpydeclet(&str[27], cc6);
str[30] = ',';
__dpd_cpydeclet(&str[31], cc7);
str[34] = ',';
__dpd_cpydeclet(&str[35], cc8);
str[38] = ',';
__dpd_cpydeclet(&str[39], cc9);
str[42] = ',';
__dpd_cpydeclet(&str[43], cc10);
str[46] = 'E';
after_exp = __dpd_exptostr(&str[47], exp);
if (after_exp != NULL)
*after_exp = '\0';
return str;
}
weak_alias (__decoded128, decoded128)
hidden_def(__decoded128)
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