gfortran debugging with gdb: w_powf.c: No such file or directory

Question

I have a Fortran program I am debuging. I have a list of varables and one of the expected variables is almost double its expected value. So I compiled the program, with debug f

Answer 1

** is in Fortran exponential operator. Exponentiation is implemented in glibc w_powf.c. Gdb can't find this file in your sources. This is not an error, rather diagnostic.