Browse Source

Get rid of CL_REQUIRE/CL_PROVIDE(cl_F_pi_var).

Turn cl_[SDFL]F_pi global variables into functions (which return a constant
reference to the static value) in order to avoid static initialization order
problems.
master
Alexei Sheplyakov 16 years ago
parent
commit
7069712895
  1. 2
      include/cln/float.h
  2. 6
      src/float/transcendental/cl_F_pi.cc
  3. 6
      src/float/transcendental/cl_F_pi_def.cc
  4. 6
      src/float/transcendental/cl_F_pi_f.cc
  5. 37
      src/float/transcendental/cl_F_pi_var.cc
  6. 9
      src/float/transcendental/cl_F_tran.h
  7. 12
      src/float/transcendental/cl_LF_pi.cc

2
include/cln/float.h

@ -602,8 +602,6 @@ extern const cl_F pi (float_format_t f);
// pi() liefert die Zahl pi im Default-Float-Format.
extern const cl_F pi (void);
//CL_REQUIRE(cl_F_pi_var)
// sin(x) liefert den Sinus (sin x) eines Float x.
extern const cl_F sin (const cl_F& x);

6
src/float/transcendental/cl_F_pi.cc

@ -18,9 +18,9 @@ namespace cln {
const cl_F pi (const cl_F& y)
{
floattypecase(y
, return cl_SF_pi;
, return cl_FF_pi;
, return cl_DF_pi;
, return cl_SF_pi();
, return cl_FF_pi();
, return cl_DF_pi();
, return pi(TheLfloat(y)->len);
);
}

6
src/float/transcendental/cl_F_pi_def.cc

@ -17,9 +17,9 @@ namespace cln {
const cl_F pi (void)
{
floatformatcase(default_float_format
, return cl_SF_pi;
, return cl_FF_pi;
, return cl_DF_pi;
, return cl_SF_pi();
, return cl_FF_pi();
, return cl_DF_pi();
, return pi(len);
);
}

6
src/float/transcendental/cl_F_pi_f.cc

@ -17,9 +17,9 @@ namespace cln {
const cl_F pi (float_format_t f)
{
floatformatcase((uintC)f
, return cl_SF_pi;
, return cl_FF_pi;
, return cl_DF_pi;
, return cl_SF_pi();
, return cl_FF_pi();
, return cl_DF_pi();
, return pi(len);
);
}

37
src/float/transcendental/cl_F_pi_var.cc

@ -1,9 +1,8 @@
// cl_SF_pi, cl_FF_pi, cl_DF_pi, cl_LF_pi.
// cl_SF_pi(), cl_FF_pi(), cl_DF_pi(), cl_LF_pi().
// General includes.
#include "cl_sysdep.h"
CL_PROVIDE(cl_F_pi_var)
// Specification.
#include "cl_F_tran.h"
@ -18,20 +17,36 @@ CL_PROVIDE(cl_F_pi_var)
namespace cln {
// Mantisse von pi :
static const uintD pi_mantisse [2048/intDsize] =
#include "cl_F_pi_var.h"
cl_LF cl_LF_pi = encode_LF_array(0,2,pi_mantisse,2048/intDsize);
cl_LF& cl_LF_pi()
{
// Mantisse von pi :
static const uintD pi_mantisse [2048/intDsize] =
#include "cl_F_pi_var.h"
static cl_LF val = encode_LF_array(0,2,pi_mantisse,2048/intDsize);
return val;
}
// Problem: If someone changes free_hook, the destructor of this
// will call the new hook, passing it some pointer obtained by the old
// malloc_hook. ??
const cl_SF cl_SF_pi = cl_LF_to_SF(cl_LF_pi);
const cl_FF cl_FF_pi = cl_LF_to_FF(cl_LF_pi);
const cl_DF cl_DF_pi = cl_LF_to_DF(cl_LF_pi);
const cl_SF& cl_SF_pi()
{
static const cl_SF val = cl_LF_to_SF(cl_LF_pi());
return val;
}
const cl_DF& cl_DF_pi()
{
static const cl_DF val = cl_LF_to_DF(cl_LF_pi());
return val;
}
const cl_FF& cl_FF_pi()
{
static const cl_FF val = cl_LF_to_FF(cl_LF_pi());
return val;
}
} // namespace cln
CL_PROVIDE_END(cl_F_pi_var)

9
src/float/transcendental/cl_F_tran.h

@ -9,12 +9,11 @@
namespace cln {
// pi.
extern const cl_SF cl_SF_pi;
extern const cl_FF cl_FF_pi;
extern const cl_DF cl_DF_pi;
extern cl_LF cl_LF_pi; // as long as it has ever been computed
extern const cl_SF& cl_SF_pi();
extern const cl_FF& cl_FF_pi();
extern const cl_DF& cl_DF_pi();
extern cl_LF& cl_LF_pi(); // as long as it has ever been computed
extern const cl_LF pi (uintC len); // computes it even further
//CL_REQUIRE(cl_F_pi_var)
// cl_exp_aux(p,lq,len) liefert die Zahl exp(p/2^lq) mit len Digits.
// 0 < |p| < 2^lq.

12
src/float/transcendental/cl_LF_pi.cc

@ -260,13 +260,13 @@ const cl_LF compute_pi_ramanujan_163_fast (uintC len)
const cl_LF pi (uintC len)
{
var uintC oldlen = TheLfloat(cl_LF_pi)->len; // vorhandene Länge
var uintC oldlen = TheLfloat(cl_LF_pi())->len; // vorhandene Länge
if (len < oldlen)
return shorten(cl_LF_pi,len);
return shorten(cl_LF_pi(),len);
if (len == oldlen)
return cl_LF_pi;
return cl_LF_pi();
// TheLfloat(cl_LF_pi)->len um mindestens einen konstanten Faktor
// TheLfloat(cl_LF_pi())->len um mindestens einen konstanten Faktor
// > 1 wachsen lassen, damit es nicht zu häufig nachberechnet wird:
var uintC newlen = len;
oldlen += floor(oldlen,2); // oldlen * 3/2
@ -274,8 +274,8 @@ const cl_LF pi (uintC len)
newlen = oldlen;
// gewünschte > vorhandene Länge -> muß nachberechnen:
cl_LF_pi = compute_pi_ramanujan_163_fast(newlen);
return (len < newlen ? shorten(cl_LF_pi,len) : cl_LF_pi);
cl_LF_pi() = compute_pi_ramanujan_163_fast(newlen);
return (len < newlen ? shorten(cl_LF_pi(),len) : cl_LF_pi());
}
} // namespace cln
Loading…
Cancel
Save