undefined reference to `RunSwmmDll(char*, char*, char*)'

**amkabaasha** · 10-31-2011

Hello,
I have tried to 'google' this seemingly basic problem but all the suggestions I have found don't work.
I have a calling program "trial_1.cpp" that calls a function "RunSwmmDll", that is declared in "swmm5_iface.h" and defined in "swmm5_iface.c"; all these files are attached to this message.
In addition to the above mentioned files, all the other required files have also been added to the project.

The problem is that all the time I try to build this project, it says undefined reference to 'RunSwmmDll(char*, char*, char*)'.
I frankly speaking can't figure out what the cause of this error is!!!!!
Any help is highly appreciated!!!!

**Elysia** · 10-31-2011

OK, first of all, make sure to add 'extern "C"' before all function you are trying to call in the library.
Alternatively, do

Code:

extern "C"
{
	// Functions here
}

And you say that are the required files have been added to the project?
And just a note that your call in main will crash your program if you get it running. Perhaps you should read the documentation for the library you are trying to use?

Thread: undefined reference to `RunSwmmDll(char, char, char*)'

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Thread: undefined reference to `RunSwmmDll(char*, char*, char*)'

undefined reference to `RunSwmmDll(char*, char*, char*)'

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undefined reference to `RunSwmmDll(char, char, char*)'