solout_func – dop853

abstract interface
private subroutine solout_func(me, nr, xold, x, y, irtrn, xout)

Type	Intent	Attributes		Name
class(dop853_class),	intent(inout)		::	me
integer,	intent(in)		::	nr	grid point (0,1,...)
real(kind=wp),	intent(in)		::	xold	the preceding grid point
real(kind=wp),	intent(in)		::	x	current grid point
real(kind=wp),	intent(in),	dimension(:)	::	y	state vector $y(x)$ [size n]
integer,	intent(inout)		::	irtrn	serves to interrupt the integration. if `irtrn` is set `<0`, dop853 will return to the calling program. if the numerical solution is altered in `solout`, set `irtrn = 2`.
real(kind=wp),	intent(out)		::	xout	`xout` can be used for efficient intermediate output if one puts `iout=3`. when `nr=1` define the first output point `xout` in `solout`. the subroutine `solout` will be called only when `xout` is in the interval `[xold,x]`; during this call a new value for `xout` can be defined, etc.

solout furnishes the solution y at the nr-th grid-point x (thereby the initial value is the first grid-point).