[anon291]

If given explicit support in a language then no it's not. Especially with the keyword approach rust is taking, the compiler will guarantee the semantics.

Do you believe the exec system call is similarly unreliable at replacing your process image? Amazing that unix systems work at all

[masklinn]

> If given explicit support in a language then no it's not. Especially with the keyword approach rust is taking, the compiler will guarantee the semantics.

Then it's TCE not TCO.

> Do you believe the exec system call is similarly unreliable at replacing your process image?

Exec is entirely unlike TCO. If exec was a syscall which sometimes did and sometimes did not replace your process image, then it'd be like TCO, and it'd be similarly unreliable.

[tome]

I think it would have helped if you'd defined your terms earlier. Wikipedia, for example, doesn't distinguish between the terminology TCO and TCE: https://en.wikipedia.org/wiki/Tail_call