fix for v0.7

Author: ChrisRackauckas

REQUIRE

@@ -1,9 +1,9 @@
-julia 0.7-beta2
+julia 0.7
 DiffEqBase 3.0.0
 OrdinaryDiffEq 3.0.0
 Reexport
 StaticArrays
 RecursiveArrayTools
 RecipesBase
 DiffEqCallbacks
-FileIO
+FileIO

src/boundary_conditions.jl

@@ -7,20 +7,16 @@ end
 
 PeriodicBoundaryConditions(L::Real) = PeriodicBoundaryConditions(SVector(0, L, 0, L, 0, L))
 
-Base.start(::PeriodicBoundaryConditions) = 1
-
-Base.done(pbc::PeriodicBoundaryConditions, state) = state > length(pbc.boundary)
-
-function Base.next(pbc::PeriodicBoundaryConditions, state)
-    pbc.boundary[state], state + 1
+function Base.iterate(pbc::PeriodicBoundaryConditions,state=1)
+  state > length(pbc.boundary) && return nothing
+  pbc.boundary[state], state + 1
 end
 
 function Base.getindex(pbc::PeriodicBoundaryConditions, i::Integer)
     1 <= i <= length(pbc.boundary) || throw(BoundsError(pbc, i))
     pbc.boundary[i]
 end
 
-
 struct InfiniteBox{cType <: Real} <: BoundaryConditions
     boundary::SVector{6,<:cType}
 end

src/nbody_simulation_result.jl

@@ -22,12 +22,10 @@ end
 
 # This iterator interface is implemented specifically for making animation.
 # Probably, there will be a wrapper for this in the future.
-Base.start(::SimulationResult) = 1
 
-Base.done(sr::SimulationResult, state) = state > length(sr.solution.t)
-
-function Base.next(sr::SimulationResult, state)
-    (sr, sr.solution.t[state]), state + 1
+function Base.iterate(sr::SimulationResult,state=1)
+  state > length(sr.solution.t) && return nothing
+  (sr, sr.solution.t[state]), state + 1
 end
 
 function get_velocity(sr::SimulationResult, time::Real, i::Integer=0)