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PERMIT_UNDERFLOW@

Platform

Win32

Purpose

To switch off floating point underflow checking (Win32 only).

Syntax

SUBROUTINE PERMIT_UNDERFLOW@(PERMISSION)
LOGICAL (KIND=2) PERMISSION

Description

If PERMISSION is .TRUE. then this routine forces subsequent floating point underflows to return zero. If PERMISSION is .FALSE. then subsequent underflows will force a program fault.

 

 

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