I believe that this should be sufficient to let CMake know that my
header file is in this particular directory, but when I run the
generated makefile, I receive the following error:
Undefined symbols:
"void util::load_matrix<double>(std::basic_string<char,
std::char_traits<char>, std::allocator<char> >,
TNT::Array2D<double>*)", referenced from:
run_test() in model.cpp.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
make[2]: *** [model] Error 1
make[1]: *** [CMakeFiles/model.dir/all] Error 2
make: *** [all] Error 2
Matilda-2:FDTD-model-1 nicholaskinar$
What am I doing wrong, and what do I have to modify to let CMake link
my header file with the output executable? I am building my project
on UNIX (Mac OS X and Linux) systems using CMake 2.8.2.
My mistake; linking with code contained in a header file actually works
quite well in CMake. Just as the error says, the problem was due to an
undefined symbol. In the file my_util.h, I changed
template <class T>
void load_matrix(std::string fileName, TNT::Array2D<double> *M)
to
void load_matrix(std::string fileName, TNT::Array2D<T> *M)
I was then able to successfully compile and link my program.
Nicholas
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