A.2.23 –fnonstd

Causes hardware traps to be enabled for floating-point overflow, division by zero, and invalid operations exceptions. These results are converted into SIGFPE signals; if the program has no SIGFPE handler, it terminates with a memory dump (unless you limit the core dump size to 0).

SPARC: In addition, -fnonstd selects SPARC nonstandard floating point.

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.