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// integer_decode_float().
// General includes.
#include "cl_sysdep.h"
// Specification.
#include "cln/lfloat.h"
// Implementation.
#include "cl_LF.h"
#include "cl_I.h"
#include "cl_DS.h"
namespace cln {
MAYBE_INLINE
const cl_idecoded_float integer_decode_float (const cl_LF& x)
{
// x entpacken:
var uintE uexp = TheLfloat(x)->expo;
if (uexp == 0)
{ return cl_idecoded_float(0, 0, 1); }
var cl_signean sign = TheLfloat(x)->sign;
var uintC len = TheLfloat(x)->len;
// intDsize*len >= 53 >= 33 >= cl_value_len, also len >= bn_minlength.
// Baue Integer für die Mantisse.
// Vorne 1 Nulldigit, damit es eine NDS wird.
var Bignum mant = allocate_bignum(1+len);
mspref(arrayMSDptr(TheBignum(mant)->data,1+len),0) = 0;
copy_loop_msp(arrayMSDptr(TheLfloat(x)->data,len),arrayMSDptr(TheBignum(mant)->data,1+len) mspop 1,len); // NUDS kopieren
return cl_idecoded_float(
// Mantisse
mant,
// e-intDsize*n = uexp-LF_exp_mid-intDsize*n als Integer
minus(uexp, LF_exp_mid + intDsize*len),
(sign>=0 ? cl_I(1) : cl_I(-1)) // (-1)^s erzeugen
);
}
} // namespace cln