ldexpd2

NAME

ldexpd2 - return double elements multiplied by an integral power of 2

Procedure call syntax:

#include <simdmath.h>

vector double ldexpd2(vector double x, vector signed int exp);

Link with -lsimdmath

Inline call syntax:

#include <simdmath.h>

#include <ldexpd2.h>

vector double _ldexpd2(vector double x, vector signed int exp);

Parameters
x	vector of fractional components
exp	vector of exponential components

The ldexpd2 function returns a vector of x*2^exp for the corresponding elements of x and exp.

The function ldexpd2 returns a double vector in which each element is defined as:

for the corresponding elements of x and exp.
For large elements of exp (overflow), the element in the result saturates to HUGE_VALF with an appropriate sign.
For small elements of exp (underflow), the corresponding result element is 0.

SPU only

SIMD Math library specification for the Cell Broadband Engine™ Architecture.

Basis

ISO9899 (C99) ldexp functions.