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By: gconant
Sorry to ask a question regarding the visual c++ environment, but I've come
across something that seems straight-forward and yet doesn't work.
I downloaded the latest developer binaries for the plotutils package and
installed
it (XP Pro, if it matters). I would like to call classes from the libplotter
library, but even very simple calls fail to link. Thus (with PSPlotter *plotter
in a header):
Draw_graph::Draw_graph (char *outputfile, Graph<Gene_node> *graph)
{
plotter = new PSPlotter (cin, cout, cerr); // create Plotter
}
gives an:
error LNK2001: unresolved external symbol "public: __thiscall
PSPlotter::PSPlotter(class istream &,class ostream &,class ostream &)"
(??0PSPlotter@@[EMAIL PROTECTED]@@AAVostream@@[EMAIL PROTECTED])
The linker points to the correct library (libplotter.lib) and include dirs seem
ok. Moreover, if I replace the plotter functions with c functions from libplot,
that compiles fine. Is it possible that it has something to do w/ how the names
are mangled between g++ (used to create libplotter) and vc++? I have recreated
the link library using lib.exe without curing the problem. Thanks for any help.
Gavin Conant
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