PFREXPH 3CW "12 July 2007" "mathcw-1.00"
Table of contents
pfrexphf, pfrexph, pfrexphl, pfrexphw, pfrexphq, pfrexphll, pfrexphdf, pfrexphd, pfrexphdl, pfrexphdll - extract fraction and power-of-sixteen from a pair-precision floating-point number
cc [ flags ] -I/usr/local/include file(s) -L/usr/local/lib -lmcw [ ... ]
#include <mathcw.h>
#include <paircw.h>
extern void pfrexphf (float_pair result, const float_pair x, int *pn);
extern void pfrexph (double_pair result, const double_pair x, int *pn);
extern void pfrexphl (long_double_pair result, const long_double_pair x, int *pn);
extern void pfrexphw (__float80_pair result, const __float80_pair x, int *pn);
extern void pfrexphq (__float128_pair result, const __float128_pair x, int *pn);
extern void pfrexphll (long_long_double_pair result, const long_long_double_pair x, int *pn);
extern void pfrexphdf (decimal_float_pair result, const decimal_float_pair x, int *pn);
extern void pfrexphd (decimal_double_pair result, const decimal_double_pair x, int *pn);
extern void pfrexphdl (decimal_long_double_pair result, const decimal_long_double_pair x, int *pn);
extern void pfrexphdll (decimal_long_long_double_pair result, const decimal_long_long_double_pair x,
int *pn);
NB: Functions with prototypes containing underscores in type names
may be available only with certain extended compilers.
Split the argument into the product of a fraction of magnitude in
[1/16,1) (or 0 if the argument is zero) with the same sign as the
argument, and an integral power of sixteen. This operation is always
exact for bases 2, 4, and 16, and the number can be recovered with
the companion function pldexph(result, x, n).
None. The function result is stored in the first argument, result,
and if the second argument is non-NULL, store the
power-of-two-or-ten in the object that it points to.
None.
pabs(3CW),
pacos(3CW),
pacosh(3CW),
padd(3CW),
pasin(3CW),
pasinh(3CW),
patan(3CW),
patan2(3CW),
patanh(3CW),
pcbrt(3CW),
pcmp(3CW),
pcon(3CW),
pcopy(3CW),
pcopysign(3CW),
pcos(3CW),
pcosh(3CW),
pcotan(3CW),
pdiv(3CW),
pdot(3CW),
peps(3CW),
peval(3CW),
pexp(3CW),
pexp10(3CW),
pexp16(3CW),
pexp2(3CW),
pexp8(3CW),
pexpm1(3CW),
pfdim(3CW),
pfmax(3CW),
pfmin(3CW),
pfrexp(3CW),
phigh(3CW),
phypot(3CW),
pierf(3CW),
pierfc(3CW),
pilogb(3CW),
pin(3CW),
pinfty(3CW),
pipow(3CW),
pisinf(3CW),
pisnan(3CW),
pisqnan(3CW),
pissnan(3CW),
pldexp(3CW),
pldexph(3CW),
plog(3CW),
plog101p(3CW),
plog1p(3CW),
plow(3CW),
pmul(3CW),
pmul2(3CW),
pneg(3CW),
pout(3CW),
pprosum(3CW),
pqnan(3CW),
pscalbln(3CW),
pscalbn(3CW),
pset(3CW),
psignbit(3CW),
psin(3CW),
psinh(3CW),
psnan(3CW),
psplit(3CW),
psqrt(3CW),
psub(3CW),
psum(3CW),
psum2(3CW),
ptan(3CW),
ptanh(3CW).