CODEWITHSUNDEEP
c++headerinclude
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Reputation: 11

C++ header include conflict

I am working on a traffic simulation program for school. My Simulation class reads in a list of vehicles from an XML file, so I have included Vehicle.h in my Simulation class. I want my vehicle to be able to hold a pointer to the simulation object so that it can use the simulation's searchRoads function. So I included Simulation.h in my Vehicle class.

When I did this, I got over 100 errors when I tried to compile. I'm pretty iffy on my C++ so if I committed some sort of cardinal sin, please let me know how to rectify this.

Upvotes: 0

Views: 5259

Answers (3)

Jay
Jay

Reputation: 14471

Since operating systems have the ability to handle long file names I've started naming my include files so they reflect the code's position in the namespace:

namespace network {
 class connection { bool send( char* stuff ); }
}

Would end up in the file "network.connection.h".

It helps keep things organized and reduces the chance of name collision of files.

Upvotes: 0

Alok Save
Alok Save

Reputation: 206616

Either, You are missing inclusion guards, leading to multiple inclusion of header files

Or

You are creating a Circular Dependency of your headers. You should be rather using Forward Declaration.

Post details of your code for more detailed answer.

Upvotes: 3

crisbia
crisbia

Reputation: 174

You learn something about include guards: http://en.wikipedia.org/wiki/Include_guard Hope this helps.

Upvotes: 0

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