isinff4

NAME

isinff4 - verify if float elements are infinite

Procedure call syntax:

#include <simdmath.h>

vector unsigned int isinff4(vector float x);

Link with -lsimdmath

Inline call syntax:

#include <simdmath.h>

#include <isinff4.h>

vector unsigned int _isinff4(vector float x);

Parameters
x	input vector

The isinff4 function returns a vector in which each element indicates if the corresponding element of x is an infinity (positive or negative).

On the SPU single-precision Inf values are not representable. Therefore the function isinff4 returns 0 for all input.

On the PPU the function isinff4 returns an unsigned int vector in which each element is defined as:

UINT_MAX	if the element of x is either positive or negative infinity.
0	otherwise.

SPU and PPU

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

Basis

ISO9899 (C99) isinf macros.