test_trace.f90

!        This is file : test_trace
! Author= zaikunzhang
! Started at: 28.05.2022
! Last Modified: Saturday, May 28, 2022 AM10:31:30

program test_trace
implicit none
real :: a, b
a = 0.0
b = 1.0 / a
write (*, *) a, b
end program test_trace