[OPEN-ILS-DEV] PATCH: osrf_router.[ch] (const-correctness).

[Scott McKellar]

This patch adds the const qualifier to a number of function parameters.

In one of the affected functions (osrfRouterAddClass), I added a cast 
to remove the constness from the classname parameter when passing it
to osrfRouterClassFree().  This cast is ugly but harmless, because
osrfRouterClassFree() treats the pointer as if it were const anyway.

I would have liked to add the const to the corresponding parameter of
osrfRouterClassFree().  However this function can be invoked through a
function pointer.  If I added the const, the signature of the function
would no longer match the signature of the function pointer,  We
could probably change the signature of the function pointer, but that
would involve more complications than I want to wrestle with right
now.

Scott McKellar
http://home.swbell.net/mck9/ct/

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