mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-09 23:00:07 +00:00
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/* Test iszero with excess precision.
|
|
Copyright (C) 2016-2024 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 <float.h>
|
|
#include <math.h>
|
|
#include <stdio.h>
|
|
|
|
#define TEST(TYPE, TRUE_MIN) \
|
|
do \
|
|
{ \
|
|
if (iszero (TRUE_MIN / 2)) \
|
|
puts ("iszero removes excess precision for " #TYPE); \
|
|
else \
|
|
{ \
|
|
puts ("iszero fails to remove excess precision for " #TYPE); \
|
|
result = 1; \
|
|
} \
|
|
} \
|
|
while (0)
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
int result = 0;
|
|
|
|
TEST (float, FLT_TRUE_MIN);
|
|
TEST (double, DBL_TRUE_MIN);
|
|
TEST (long double, LDBL_TRUE_MIN);
|
|
|
|
return result;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|