PSCALBLN 3CW "12 July 2007" "mathcw-1.00"

Table of contents


NAME

pscalblnf, pscalbln, pscalblnl, pscalblnw, pscalblnq, pscalblnll, pscalblndf, pscalblnd, pscalblndl, pscalblndll - scale pair-precision floating-point number by power of FLT_RADIX

SYNOPSIS

cc [ flags ] -I/usr/local/include file(s) -L/usr/local/lib -lmcw [ ... ]

#include <mathcw.h>
#include <paircw.h>

extern void pscalblnf (float_pair result, const float_pair x, long int n);

extern void pscalbln (double_pair result, const double_pair x, long int n);

extern void pscalblnl (long_double_pair result, const long_double_pair x, long int n);

extern void pscalblnw (__float80_pair result, const __float80_pair x, long int n);

extern void pscalblnq (__float128_pair result, const __float128_pair x, long int n);

extern void pscalblnll (long_long_double_pair result, const long_long_double_pair x, long int n);

extern void pscalblndf (decimal_float_pair result, const decimal_float_pair x, long int n);

extern void pscalblnd (decimal_double_pair result, const decimal_double_pair x, long int n);

extern void pscalblndl (decimal_long_double_pair result, const decimal_long_double_pair x, long int n);

extern void pscalblndll (decimal_long_long_double_pair result, const decimal_long_long_double_pair x, long int n);

NB: Functions with prototypes containing underscores in type names may be available only with certain extended compilers.


DESCRIPTION

Compute the product of x and the value of FLT_RADIX raised to the power n. In the absence of underflow and overflow of the result, this scaling is always exact.

A companion function, pscalbn(result, x, n), provides for a lower-precision exponent.


RETURN VALUES

None. The function result is stored in the first argument, result.

ERRORS

None.

SEE ALSO

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), pfrexph(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), 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).