bcd calls exit

[kwizart]

There is this error when reviewing the bcd package for Fedora:

This library package calls exit() or _exit(), probably in a non-fork()
context. Doing so from a library is strongly discouraged - when a library
function calls exit(), it prevents the calling program from handling the
error, reporting it to the user, closing files properly, and cleaning up any
state that the program has. It is preferred for the library to return an
actual error code and let the calling program decide how to handle the
situation.

For example, I wonder if the library could return 0.f; on functions that expects a float ?