routing: SetAllowedVehiclesForIndex not working in C# wrappers (changed C++ signature)

Version: v9.15
Language: C#

Routing Solver

Windows

After updating to 9.15 i saw this error in my code in SetAllowedVehiclesForIndex

I have searched and saw that it has changed

How to fix it for using 9.15?

Regards

Need to support absl::Span in our SWIG wrapper
Add test to Routing to verify AllowedVehcileForIndex API is usable...
Check Java and Python pretty sure we will have the same kind of issue...

ref:

or-tools/ortools/constraint_solver/routing.h

Lines 1003 to 1008 in b21a132

    
           /// Sets the vehicles which can visit a given node. If the node is in a 
        
           /// disjunction, this will not prevent it from being unperformed. 
        
           /// Specifying an empty vector of vehicles has no effect (all vehicles 
        
           /// will be allowed to visit the node). 
        
           void SetAllowedVehiclesForIndex(absl::Span<const int> vehicles, 
        
                                           int64_t index);

Thanks for the explanation! Currently, this means the API doesn’t work in C# right? Is there something I could help with in the meantime?

lperron the bug is only in c#? In Java and python it works? Are you planning to make a release with fix soon or just in April (referring the new 9.16 milestone)?

Python has the same problem:
Code

routing.SetAllowedVehiclesForIndex([1], manager.NodeToIndex(1))

Error

SetAllowedVehiclesForIndex
    return _pywrapcp.RoutingModel_SetAllowedVehiclesForIndex(self, vehicles, index)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: in method 'RoutingModel_SetAllowedVehiclesForIndex', argument 2 of type 'absl::Span< int const >'

routing(python): fix SetAllowedVehiclesForIndex (#4982)

fix: rétablit l'exécution du solveur et corrige trois bugs bloquants

should be fixed by #5290

fix: rétablit l'exécution du solveur et corrige trois bugs bloquants

Navigation Menu

Repository navigation

routing: SetAllowedVehiclesForIndex not working in C# wrappers (changed C++ signature) #4982

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

	/// Sets the vehicles which can visit a given node. If the node is in a
	/// disjunction, this will not prevent it from being unperformed.
	/// Specifying an empty vector of vehicles has no effect (all vehicles
	/// will be allowed to visit the node).
	void SetAllowedVehiclesForIndex(absl::Span<const int> vehicles,
	int64_t index);

routing: SetAllowedVehiclesForIndex not working in C# wrappers (changed C++ signature) #4982

Description

Activity

Mizux commented on Jan 12, 2026

armeniomiranda-dev commented on Jan 12, 2026

armeniomiranda-dev commented on Jan 13, 2026

Grenby commented on Jan 26, 2026

Mizux commented on Aug 24, 2026

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions