RANGE(3F) — FORTRAN LIBRARY ROUTINES
NAME
flmin, flmax, dflmin, dflmax, inmax − return extreme values
SYNOPSIS
function flmin() function flmax() double precision function dflmin() double precision function dflmax() function inmax()
DESCRIPTION
Functions flmin and flmax return the minimum and maximum positive normalized single precision floating point values respectively. Functions dflmin and dflmax return the minimum and maximum positive normalized double precision floating point values. Function inmax returns the maximum positive integer value.
These functions can be used by programs that must scale algorithms to the numerical range of the processor.
The values returned by flmin and dflmin are the smallest normalized IEEE format floating point values. The values returned by flmax and dflmax are the largest finite IEEE format floating point values.
The approximate values of these functions for the Sun Workstation are:
flmin1.175494e−38
flmax3.402823e+38
dflmin
2.2250738590e−308
dflmax
1.7976931349e+308
inmax
2147483647
FILES
/usr/lib/libF77.a
Sun Release 3.0β — Last change: 16 February 1984