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/* Test for correct rounding of negative floating-point numbers by scanf
(bug 23280).
Copyright (C) 2018-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU 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 for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <fenv.h>
#include <stdio.h>
#include <stdlib.h>
#include <support/check.h>
static int
do_test (void)
{
#ifdef FE_DOWNWARD
if (fesetround (FE_DOWNWARD) == 0)
{
double a = strtod ("-0.1", NULL);
double b = 0;
int r = sscanf ("-0.1", "%lf", &b);
TEST_VERIFY (r == 1);
TEST_VERIFY (a == b);
}
#endif
#ifdef FE_UPWARD
if (fesetround (FE_UPWARD) == 0)
{
double a = strtod ("-0.1", NULL);
double b = 0;
int r = sscanf ("-0.1", "%lf", &b);
TEST_VERIFY (r == 1);
TEST_VERIFY (a == b);
}
#endif
return 0;
}
#include <support/test-driver.c>
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