Let us consider the files in listings 3 (ll.h), 4 (ll.cc) and 5 (test.cc).
We can compile ll.cc and test.cc individually, using the following commands:
g++ -g -c test.cc
g++ -g -c ll.cc |
Then, we can link the two object files, using the following command:
g++ -g test.o ll.o
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But the linker will complain that methods of the template class LinkedList<int> are not found!
We can use the following command to examine the object file ll.o:
objdump -D ll.o
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We’ll find that there is no subroutine definitions!
What is going on?