glibc/math/test-powl.c
Paul Eggert 2b778ceb40 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
2021-01-02 12:17:34 -08:00

52 lines
1.4 KiB
C

/* Test for powl
Copyright (C) 2011-2021 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 <stdio.h>
#include <math.h>
#include <float.h>
#include <ieee754.h>
static int
do_test (void)
{
int result = 0;
#if LDBL_MANT_DIG == 64
{
long double x = 1e-20;
union ieee854_long_double u;
u.ieee.mantissa0 = 1;
u.ieee.mantissa1 = 1;
u.ieee.exponent = 0;
u.ieee.negative = 0;
(void) powl (0.2, u.d);
x = powl (x, 1.5);
if (fabsl (x - 1e-30) > 1e-10)
{
printf ("powl (1e-20, 1.5): wrong result: %Lg\n", x);
result = 1;
}
}
#endif
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"