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/GNU Fortran 7

7.3.5 _gfortran_set_fpe — Enable floating point exception traps

Description:

_gfortran_set_fpe enables floating point exception traps for the specified exceptions. On most systems, this will result in a SIGFPE signal being sent and the program being aborted.

Syntax:

void _gfortran_set_fpe (int val)

Arguments:
option[0] IEEE exceptions. Possible values are (bitwise or-ed) zero (0, default) no trapping, GFC_FPE_INVALID (1), GFC_FPE_DENORMAL (2), GFC_FPE_ZERO (4), GFC_FPE_OVERFLOW (8), GFC_FPE_UNDERFLOW (16), and GFC_FPE_INEXACT (32).
Example:
int main (int argc, char *argv[])
{
  /* Initialize libgfortran.  */
  _gfortran_set_args (argc, argv);
  /* FPE for invalid operations such as SQRT(-1.0).  */
  _gfortran_set_fpe (1);
  return 0;
}

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https://gcc.gnu.org/onlinedocs/gcc-7.1.0/gfortran/_005fgfortran_005fset_005ffpe.html