Sabyasachi,
I know what the error means, but it's impossible to tell without seeing
the code. Are you sure you are linking the executable you create from
main.cc against the shared library you create?
Best
W.
On 8/31/23 01:51, sabyasachi chatterjee wrote:
*** Caution: EXTERNAL Sender ***
I added at the end of ibvp.h:
typedef ibvp<3> ibvp_obj;
I added at the end of ibvp.cc:
template class ibvp<3>;
Then in main.cc, I create the object as
ibvp_obj irradiation;
It is still returning exactly the same error of undefined reference.
/home/sabyasachi/Documents/current_research/irradiated_materials/irradiated_tension_engg_400C/main.cc:96:
error: undefined reference to 'ibvp<3>::ibvp()'
/home/sabyasachi/Documents/current_research/irradiated_materials/irradiated_tension_engg_400C/main.cc:98:
error: undefined reference to 'ibvp<3>::run()'
/home/sabyasachi/Documents/current_research/irradiated_materials/irradiated_tension_engg_400C/main.cc:128:
error: undefined reference to 'ibvp<3>::~ibvp()'
/home/sabyasachi/Documents/current_research/irradiated_materials/irradiated_tension_engg_400C/main.cc:128:
error: undefined reference to 'ibvp<3>::~ibvp()'
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/main.dir/build.make:132: main] Error 1
make[1]: *** [CMakeFiles/Makefile2:100: CMakeFiles/main.dir/all] Error 2
make: *** [Makefile:91: all] Error 2
I also tried template class ibvp_obj<3> at the end of .cc but still the
same error.
On Wednesday, August 30, 2023 at 9:59:05 PM UTC+5:30 Wolfgang Bangerth
wrote:
On 8/30/23 00:22, sabyasachi chatterjee wrote:
>
>
/home/sabyasachi/Documents/current_research/irradiated_materials/irradiated_tension_engg_400C/main.cc:96:
> error: undefined reference to 'ibvp<3>::ibvp()'
You will likely have to add 'explicit instantiations' to the bottom of
the .cc file. Like here:
https://stackoverflow.com/questions/2351148/explicit-template-instantiation-when-is-it-used
<https://stackoverflow.com/questions/2351148/explicit-template-instantiation-when-is-it-used>
Best
W.
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