help for errors in C++

[sharadbags]

hi all
i am getting the following errors while compiling a C++ code in MS VC++
please suggest how to overcome it.

epsmoea is the name of the program file


epsmoea.obj : error LNK2001: unresolved external symbol _del
epsmoea.obj : error LNK2001: unresolved external symbol _deallocate
epsmoea.obj : error LNK2001: unresolved external symbol _report_archive
epsmoea.obj : error LNK2001: unresolved external symbol _update_pop
epsmoea.obj : error LNK2001: unresolved external symbol _mutation
epsmoea.obj : error LNK2001: unresolved external symbol _crossover
epsmoea.obj : error LNK2001: unresolved external symbol _tournament
epsmoea.obj : error LNK2001: unresolved external symbol _rnd
epsmoea.obj : error LNK2001: unresolved external symbol _update_elite
epsmoea.obj : error LNK2001: unresolved external symbol _insert
epsmoea.obj : error LNK2001: unresolved external symbol _report_pop
epsmoea.obj : error LNK2001: unresolved external symbol _eval
epsmoea.obj : error LNK2001: unresolved external symbol _decode
epsmoea.obj : error LNK2001: unresolved external symbol _initialize
epsmoea.obj : error LNK2001: unresolved external symbol _allocate
epsmoea.obj : error LNK2001: unresolved external symbol _randomize
epsmoea.obj : error LNK2001: unresolved external symbol _seed

 

[hamadeh]

did you use extern in your code? , if so then you should provide the object file to it.

 

[_TopGun_]

You also may use .lib files, then you should link it to your project.

 

[Pinczakko]

the functions that are called is outside of "context". I think the linker cannot locate the object file that contains the definition on the functions. Check your linker setting. Perhaps, you haven't include the needed *.obj file path to the linker setting.

 

[shabab]

This is an error when you want to connect other files to your program and files cann't be accessed.