Solomon, I suspect they forgot to mark them inline. It would explain your problem. Try changing them to ... inline std::istream& operator >> ( std::istream& in, no_property& ) and inline void getSubset( no_property& p, const no_property& s ) Best of luck, Richard ----- Original Message ----- From: "Solomon Gibbs" <solomon.gibbs@genome.osu.edu> To: <boost-users@yahoogroups.com> Sent: Tuesday, July 29, 2003 6:39 PM Subject: [Boost-Users] Linking with BGL adjacency_list_io.hpp
Hi,
I'm having trouble linking code that uses adjacency_list_io.hpp.
If the header is included is included in more than one compilation unit, I get "multiple definition of function" errors for the non-template functions in adjacency_list_io.hpp:
std::istream& operator >> ( std::istream& in, no_property& ) and void getSubset( no_property& p, const no_property& s )
I'm sure that there is some C+ subtlety that I'm missing here, but I'm not familiar enough with the library to understand what it is. Shouldn't non-template function code be in a .cpp file to keep this sort of thing from happening?
- Solomon
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