Re: Refactoring backend fork+exec code

Heikki Linnakangas <hlinnaka@iki.fi> writes:
> Committed, with some final cosmetic cleanups. Thanks everyone!

A couple of buildfarm animals don't like these tests:

    Assert(child_type >= 0 && child_type < lengthof(child_process_kinds));

for example

 ayu           | 2024-03-19 13:08:05 | launch_backend.c:211:39: warning: comparison of constant 16 with expression of
type'BackendType' (aka 'enum BackendType') is always true [-Wtautological-constant-out-of-range-compare] 
 ayu           | 2024-03-19 13:08:05 | launch_backend.c:233:39: warning: comparison of constant 16 with expression of
type'BackendType' (aka 'enum BackendType') is always true [-Wtautological-constant-out-of-range-compare] 

I'm not real sure why it's moaning about the "<" check but not the
">= 0" check, which ought to be equally tautological given the
assumption that the input is a valid member of the enum.  But
in any case, exactly how much value do these assertions carry?
If you're intent on keeping them, perhaps casting child_type to
int here would suppress the warnings.  But personally I think
I'd lose the Asserts.

            regards, tom lane