Floating-Point Options (Fortran User's Guide)

Fortran User's Guide

Floating-Point Options

For the following floating-point options, the most significant are listed first.

Table 3-5 Floating-Point Options


Action	Option	Details
Turn on SPARC nonstandard floating-point `(SPARC)`	-fns	"`-fns[={no\|yes}]`"
Set IEEE rounding mode in effect at startup	-fround=r	"`-fround=r`"
Set IEEE trapping mode in effect at startup	-ftrap=t	"`-ftrap=t`"
Set floating-point optimization preferences	-fsimple=n	"`-fsimple[=n]`"
Se floating-point precision	-fprecision=p	"`-fprecision=p`"