Thread: error LNK2001: unresolved external symbol

I am compiling code from someone else which was done on MSVC++ but I get, for example,

error LNK2001: unresolved external symbol _get_app_size

However the "get_app_size" is in the code. I compiled all the files individually and they have no errors BUT I cannot get a clean build. I read the MS Developers Network page about LNK2001, which doesn’t help me. Anyone know if there is a different way to build this into .exe file?

Matt

what version of VC++ are you using?

Is get_app_size() in a *.cpp file or *.c file? If in *.c file, is it being called from somewhere inside *.cpp file? If yes, did you prototype it in the *.cpp file with extern "C"

Code:

// *.cpp file

extern "C" void get_app_size(); // put whatever parameters are needed here