Developer Reference for Intel® oneAPI Math Kernel Library for C

ID 766684
Date 12/16/2022
Public

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p?lachkieee

Performs a simple check for the features of the IEEE standard.

Syntax

void pslachkieee (MKL_INT *isieee , float *rmax , float *rmin );

void pdlachkieee (MKL_INT *isieee , float *rmax , float *rmin );

Include Files
  • mkl_scalapack.h
Description

The p?lachkieeefunction performs a simple check to make sure that the features of the IEEE standard are implemented. In some implementations, p?lachkieee may not return.

This is a ScaLAPACK internal function and arguments are not checked for unreasonable values.

Input Parameters
rmax

(local).

The overflow threshold(= ?lamch ('O')).

rmin

(local).

The underflow threshold(= ?lamch ('U')).

Output Parameters
isieee

(local).

On exit, isieee = 1 implies that all the features of the IEEE standard that we rely on are implemented. On exit, isieee = 0 implies that some the features of the IEEE standard that we rely on are missing.

See Also