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Fix typo in x86-64 powl

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This commit is contained in:
H.J. Lu
2011-05-18 19:50:48 -04:00
committed by Ulrich Drepper
parent 0a197a9dfe
commit 8db736347c
5 changed files with 66 additions and 5 deletions
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51
math/test-powl.c Normal file
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@@ -0,0 +1,51 @@
/* Test for powl
Copyright (C) 2011 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <stdio.h>
#include <math.h>
#include <float.h>
#include <ieee754.h>
int
main (void)
{
int result = 0;
#ifndef NO_LONG_DOUBLE
# 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
#endif
return result;
}