Visible to Intel only — GUID: GUID-B57EB9A5-E2CC-40FA-9AD7-E7BE3F7A1780
Visible to Intel only — GUID: GUID-B57EB9A5-E2CC-40FA-9AD7-E7BE3F7A1780
p?lachkieee
Performs a simple check for the features of the IEEE standard. (C interface function).
Syntax
void pslachkieee(int *isieee, float *rmax, float *rmin);
void pdlachkieee(int *isieee, float *rmax, float *rmin);
Description
The p?lachkieeeroutine performs a simple check to make sure that the features of the IEEE standard are implemented. In some implementations, p?lachkieee may not return.
Note that all arguments are call-by-reference so that this routine can be directly called from Fortran code.
This is a ScaLAPACK internal subroutine and arguments are not checked for unreasonable values.
Input Parameters
- rmax
-
(local).
REAL for pslachkieee
DOUBLE PRECISION for pdlachkieee
The overflow threshold(= ?lamch ('O')).
- rmin
-
(local).
REAL for pslachkieee
DOUBLE PRECISION for pdlachkieee
The underflow threshold(= ?lamch ('U')).
Output Parameters
- isieee
-
(local). INTEGER.
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.