/tmp/cccuH3X0.o: In function `main':
foo.cc:(.text.startup+0xfe): undefined reference to `Array<double>::~Array()'
foo.cc:(.text.startup+0x107): undefined reference to `Array<int>::~Array()'
foo.cc:(.text.startup+0x122): undefined reference to `Array<double>::~Array()'
foo.cc:(.text.startup+0x12b): undefined reference to `Array<int>::~Array()'
collect2: error: ld returned 1 exit status