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Format slowexp.c

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Siddhesh Poyarekar 2013-02-25 16:13:35 +05:30
parent 8930ddc705
commit 2f22a1e8dd
2 changed files with 29 additions and 22 deletions
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3
ChangeLog
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@ -1,5 +1,8 @@
2013-02-25 Siddhesh Poyarekar <siddhesh@redhat.com> 2013-02-25 Siddhesh Poyarekar <siddhesh@redhat.com>
* sysdeps/ieee754/dbl-64/slowexp.c: Reformat in GNU coding
style.
* sysdeps/ieee754/dbl-64/slowpow.c: Reformat in GNU coding * sysdeps/ieee754/dbl-64/slowpow.c: Reformat in GNU coding
style. style.

16
sysdeps/ieee754/dbl-64/slowexp.c
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@ -39,23 +39,27 @@ void __mpexp(mp_no *x, mp_no *y, int p);
/*Converting from double precision to Multi-precision and calculating e^x */ /*Converting from double precision to Multi-precision and calculating e^x */
double double
SECTION SECTION
__slowexp(double x) { __slowexp (double x)
{
double w, z, res, eps = 3.0e-26; double w, z, res, eps = 3.0e-26;
int p; int p;
mp_no mpx, mpy, mpz, mpw, mpeps, mpcor; mp_no mpx, mpy, mpz, mpw, mpeps, mpcor;
/* Use the multiple precision __MPEXP function to compute the exponential
First at 144 bits and if it is not accurate enough, at 768 bits. */
p = 6; p = 6;
__dbl_mp(x,&mpx,p); /* Convert a double precision number x */ __dbl_mp (x, &mpx, p);
/* into a multiple precision number mpx with prec. p. */ __mpexp (&mpx, &mpy, p);
__mpexp(&mpx, &mpy, p); /* Multi-Precision exponential function */
__dbl_mp (eps, &mpeps, p); __dbl_mp (eps, &mpeps, p);
__mul (&mpeps, &mpy, &mpcor, p); __mul (&mpeps, &mpy, &mpcor, p);
__add (&mpy, &mpcor, &mpw, p); __add (&mpy, &mpcor, &mpw, p);
__sub (&mpy, &mpcor, &mpz, p); __sub (&mpy, &mpcor, &mpz, p);
__mp_dbl (&mpw, &w, p); __mp_dbl (&mpw, &w, p);
__mp_dbl (&mpz, &z, p); __mp_dbl (&mpz, &z, p);
if (w == z) return w; if (w == z)
else { /* if calculating is not exactly */ return w;
else
{
p = 32; p = 32;
__dbl_mp (x, &mpx, p); __dbl_mp (x, &mpx, p);
__mpexp (&mpx, &mpy, p); __mpexp (&mpx, &mpy, p);