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/* Test of rintf() function.
Copyright (C) 2010-2017 Free Software Foundation, Inc.
This program 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 of the License, or
(at your option) any later version.
This program 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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2010. */
#include <config.h>
#include <math.h>
#include "signature.h"
SIGNATURE_CHECK (rintf, float, (float));
#include <float.h>
#include <stdio.h>
#include "isnanf-nolibm.h"
#include "minus-zero.h"
#include "infinity.h"
#include "nan.h"
#include "macros.h"
#undef INFINITY
#undef NAN
#define DOUBLE float
#define ISNAN isnanf
#define INFINITY Infinityf ()
#define NAN NaNf ()
#define L_(literal) literal##f
#define RINT rintf
#define RANDOM randomf
#include "test-rint.h"
int
main ()
{
/* Consider the current rounding mode, cf.
<http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/float.h.html> */
if (FLT_ROUNDS == 1)
{
/* The current rounding mode is round-to-nearest
(the default in IEEE 754). */
/* Zero. */
ASSERT (rintf (0.0f) == 0.0f);
ASSERT (rintf (minus_zerof) == 0.0f);
/* Positive numbers. */
ASSERT (rintf (0.3f) == 0.0f);
ASSERT (rintf (0.5f) == 0.0f); /* unlike roundf() */
ASSERT (rintf (0.7f) == 1.0f);
ASSERT (rintf (1.0f) == 1.0f);
ASSERT (rintf (1.5f) == 2.0f);
ASSERT (rintf (1.999f) == 2.0f);
ASSERT (rintf (2.0f) == 2.0f);
ASSERT (rintf (2.1f) == 2.0f);
ASSERT (rintf (2.5f) == 2.0f); /* unlike roundf() */
ASSERT (rintf (2.7f) == 3.0f);
ASSERT (rintf (65535.99f) == 65536.0f);
ASSERT (rintf (65536.0f) == 65536.0f);
ASSERT (rintf (65536.01f) == 65536.0f);
ASSERT (rintf (2.341e31f) == 2.341e31f);
/* Negative numbers. */
ASSERT (rintf (-0.3f) == 0.0f);
ASSERT (rintf (-0.5f) == 0.0f); /* unlike roundf() */
ASSERT (rintf (-0.7f) == -1.0f);
ASSERT (rintf (-1.0f) == -1.0f);
ASSERT (rintf (-1.5f) == -2.0f);
ASSERT (rintf (-1.999f) == -2.0f);
ASSERT (rintf (-2.0f) == -2.0f);
ASSERT (rintf (-2.1f) == -2.0f);
ASSERT (rintf (-2.5f) == -2.0f); /* unlike roundf() */
ASSERT (rintf (-2.7f) == -3.0f);
ASSERT (rintf (-65535.99f) == -65536.0f);
ASSERT (rintf (-65536.0f) == -65536.0f);
ASSERT (rintf (-65536.01f) == -65536.0f);
ASSERT (rintf (-2.341e31f) == -2.341e31f);
test_function ();
return 0;
}
else
{
fputs ("Skipping test: non-standard rounding mode\n", stderr);
return 77;
}
}
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