A.2.23.1 Defaults

If –fnonstd is not specified, IEEE 754 floating-point arithmetic exceptions do not abort the program, and underflows are gradual.

Expansions

x86: -fnonstd expands to -ftrap=common.

SPARC: -fnonstd expands to -fns -ftrap=common.

See also

–fns, –ftrap=common, Numerical Computation Guide.