I'm comipling a program and it appears the next error:
/tmp/ccDKjdG3.o: In function `main':
/tmp/ccDKjdG3.o(.text+0x3e3): undefined reference to `NR::bessj(int, double)'
collect2: ld returned 1 exit status
Could anyone explain me this?
NR::bessj(int, double) is a 'class' created in a file different from the main one.