Fortran警告未感染的复杂数字

Question

我有一个fortan函数，它在复数的虚部上执行模运算。在这里它将虚部减少到-.5

complex(KIND=dpc) function mod_2pi(z) result(mod_z)
  complex(KIND=dpc), INTENT(IN) :: z
  mod_z = z-iunit*nint(aimag(z))
end function mod_2pi

然而，当我通过gfortran编译器运行时，我收到以下警告

warning: ‘IMAGPART_EXPR <psi>’ may be used uninitialized in this function [-Wmaybe-uninitialized]
     mod_z = z-iunit*nint(aimag(z))
 ^

warning: ‘REALPART_EXPR <psi>’ may be used uninitialized in this function [-Wmaybe-uninitialized]
      mod_z = z-iunit*nint(aimag(z))
 ^

出了什么问题？到目前为止，我可以看到实部和虚部都将被初始化？是否有解决方法围绕此标志而不禁用它？