ldexpf4

NAME

ldexpf4 - return float elements multiplied by an integral power of 2

Procedure call syntax:

#include <simdmath.h>

vector float ldexpf4(vector float x, vector signed int exp);

Link with -lsimdmath

Inline call syntax:

#include <simdmath.h>

#include <ldexpf4.h>

vector float _ldexpf4(vector float x, vector signed int exp);

Parameters
x	vector of fractional components
exp	vector of exponential components

The ldexpf4 function returns a vector of x*2^exp for the corresponding elements of x and exp.

The function ldexpf4 returns a float 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 and PPU

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

Basis

ISO9899 (C99) ldexp functions.