try_decode_error

rustix::backend::io::errno

Function try_decode_error 

Source 
pub(in backend) unsafe fn try_decode_error<Num: RetNumber>(
    raw: RetReg<Num>,
) -> Errno
Expand description

Check for an error from the result of a syscall which does not return on success. On success, return the unconsumed raw value.

ยงSafety

This must only be used with syscalls which do not return on success.