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/* Unit test the ti (int128) conversion routines.
Copyright (C) 2015 Free Software Foundation, Inc.
This file is part of the Decimal Floating Point C Library.
Author(s): Paul E. Murphy <murphyp@linux.vnet.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 libdfp/COPYING.txt for more information. */
#ifndef __STDC_WANT_DEC_FP__
#define __STDC_WANT_DEC_FP__
#endif
#include <float.h> /* DEC_NAN definition. */
#include <stdio.h>
#include <math.h>
#include <get_digits.h>
#define _DECIMAL_SIZE 32
#define DEC_TYPE _Decimal32
#include <numdigits.h>
#undef _DECIMAL_SIZE
#undef DEC_TYPE
#define _DECIMAL_SIZE 64
#define DEC_TYPE _Decimal64
#include <numdigits.h>
#undef _DECIMAL_SIZE
#undef DEC_TYPE
#define _DECIMAL_SIZE 128
#define DEC_TYPE _Decimal128
#include <numdigits.h>
#undef _DECIMAL_SIZE
#undef DEC_TYPE
/* TODO: For now, BID does not have dpd conversions. */
#ifndef __DECIMAL_BID_FORMAT__
#define HAS_TITD 1
#define BACKEND(x) __dpd_##x
#else
#define BACKEND(x) __bid_##x
#endif
#define _WANT_VC 1 /* Pick up the _VC_P(x,y,fmt) macro. */
#include "scaffold.c" /* Pick up the _VC_P(x,y,fmt) macro. */
/* We're going to be comparing fields so we need to extract the data. This is a
* sneaky way to get around the fact that get_digits_d* isn't exported from
* libdfp. */
#ifdef __DECIMAL_BID_FORMAT__
#include "../sysdeps/bid/bid-private.c"
#else
#include "../sysdeps/dpd/dpd-private.c"
#endif
#define TEST_STRUCT(SIZE) \
struct \
{ \
const char *format; /* Expected value printf format. */ \
int uns; /* Signed or unsigned conversion. */ \
int line; \
char const *x; /* Stringified INT128 input value. */ \
_Decimal##SIZE e; /* Expected result. */ \
} d##SIZE[]
TEST_STRUCT(128) = {
#if HAS_TITD
{"%DDe", 0, __LINE__, "0", 0.DL},
{"%DDe", 0, __LINE__, "1", 1.DL},
{"%DDe", 0, __LINE__, "-1", -1.DL},
{"%DDe", 0, __LINE__, "170141183460469231731687303715884100000",
170141183460469231731687303715884100000.DL},
{"%DDe", 0, __LINE__, "170141183460469231731687303715884100001",
170141183460469231731687303715884100000.DL},
{"%DDe", 0, __LINE__, "-170141183460469231731687303715884100000",
-170141183460469231731687303715884100000.DL},
{"%DDe", 0, __LINE__, "-100000000000000000", -1e17DL},
{"%DDe", 0, __LINE__, "100000000000000000", 1e17DL},
/* Unsigned conversions. */
{"%DDe", 1, __LINE__, "340282366920938463463374607431768211455",
340282366920938463463374607431768200000.DL},
{"%DDe", 1, __LINE__, "1000000", 1000000.DL},
{"%DDe", 1, __LINE__, "100000000000000000", 100000000000000000.DL},
{"%DDe", 1, __LINE__, "0", 0.DL},
#endif /* HAS_TI */
};
TEST_STRUCT(64) = {
{"%De", 0, __LINE__, "0", 0.DD},
{"%De", 0, __LINE__, "1", 1.DD},
{"%De", 0, __LINE__, "-1", -1.DD},
{"%De", 0, __LINE__, "170141183460469231731687303715884100000",
170141183460469231731687303715884100000.DD},
{"%De", 0, __LINE__, "170141183460469231731687303715884100001",
170141183460469231731687303715884100000.DD},
{"%De", 0, __LINE__, "-170141183460469231731687303715884100000",
-170141183460469231731687303715884100000.DD},
{"%De", 0, __LINE__, "-100000000000000000", -1e17DD},
{"%De", 0, __LINE__, "100000000000000000", 1e17DD},
/* Unsigned conversions. */
{"%De", 1, __LINE__, "340282366920938463463374607431768211455",
340282366920938463463374607431768200000.DD},
{"%De", 1, __LINE__, "340282366920938463463374607431768211455",
340282366920938463463374607431768200000.DD},
{"%De", 1, __LINE__, "1000000", 1000000.DD},
{"%De", 1, __LINE__, "100000000000000000", 100000000000000000.DD},
{"%De", 1, __LINE__, "0", 0.DD},
};
TEST_STRUCT(32) = {
{"%He", 0, __LINE__, "0", 0.DF},
{"%He", 0, __LINE__, "1", 1.DF},
{"%He", 0, __LINE__, "-1", -1.DF},
{"%He", 0, __LINE__, "170141183460469231731687303715884100000",
170141183460469230000000000000000000000.DF},
{"%He", 0, __LINE__, "170141183460469231731687303715884100001",
170141183460469230000000000000000000000.DF},
{"%He", 0, __LINE__, "-170141183460469231731687303715884100000",
-170141183460469231731687303715884100000.DF},
{"%He", 0, __LINE__, "-100000000000000000", -1e17DF},
{"%He", 0, __LINE__, "100000000000000000", 1e17DF},
/* Unsigned conversions. */
{"%He", 1, __LINE__, "340282366920938463463374607431768211455",
340282370000000000000000000000000000000.DF},
{"%He", 1, __LINE__, "340282350000000000000000000000000000001",
340282400000000000000000000000000000000.DF},
{"%He", 1, __LINE__, "340282349999999999999999999999999999999",
340282300000000000000000000000000000000.DF},
{"%He", 1, __LINE__, "1000000", 1000000.DF},
{"%He", 1, __LINE__, "100000000000000000", 100000000000000000.DF},
{"%He", 1, __LINE__, "0", 0.DF},
};
#define INT128 __int128
#define UINT128 unsigned __int128
/* Mediocre string to ti/unsti function. */
static INT128
intifyti (char const *str)
{
UINT128 val = 0;
long neg = 0;
if (*str == '-')
{
neg = 1;
str++;
}
while (*str)
{
val *= (INT128) 10;
val += (*str - '0');
str++;
}
if (neg)
return -((INT128) val);
return val;
}
extern _Decimal32 BACKEND (floattisd) (INT128);
extern _Decimal64 BACKEND (floattidd) (INT128);
extern _Decimal128 BACKEND (floattitd) (INT128);
extern _Decimal32 BACKEND (floatunstisd) (UINT128);
extern _Decimal64 BACKEND (floatunstidd) (UINT128);
extern _Decimal128 BACKEND (floatunstitd) (UINT128);
#define RUN_TESTS(SIZE, SUF) \
for (i = 0; i < (int)(sizeof (d##SIZE) / sizeof (d##SIZE[0])); ++i) \
{ \
_Decimal ## SIZE x, x_dfp; \
char const *fmt; \
if (d##SIZE[i].uns) \
{ \
fmt = "floatunsti"#SUF" (%s) %s in: %s:%d\n"; \
UINT128 x_ti = intifyti (d##SIZE[i].x); \
x = x_ti; \
x_dfp = BACKEND (floatunsti##SUF) (x_ti); \
} \
else \
{ \
fmt = "floatti"#SUF" (%s) %s in: %s:%d\n"; \
INT128 x_ti = intifyti (d##SIZE[i].x); \
x = x_ti; \
x_dfp = BACKEND (floatti##SUF) (x_ti); \
} \
fprintf (stdout, fmt, d##SIZE[i].x, "gcc", __FILE__, __LINE__); \
_VC_P (__FILE__, d##SIZE[i].line, d##SIZE[i].e, x, d##SIZE[i].format); \
fprintf (stdout, fmt, d##SIZE[i].x, "libdfp", __FILE__, __LINE__); \
_VC_P (__FILE__, d##SIZE[i].line, d##SIZE[i].e, x_dfp, d##SIZE[i].format); \
}
int
main (void)
{
int i;
RUN_TESTS (128, td);
RUN_TESTS (64, dd);
RUN_TESTS (32, sd);
_REPORT ();
/* fail comes from scaffold.c */
return fail;
}
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