is_error_value {nanonext} | R Documentation |
Error Validators
Description
Validator functions for error value types created by nanonext.
Usage
is_error_value(x)
is_nul_byte(x)
Arguments
x |
an object. |
Details
Is the object an error value generated by the package. All non-success integer return values are classed ‘errorValue’ to be distinguishable from integer message values. Includes error values returned after a timeout etc.
Is the object a nul byte.
Value
Logical value TRUE or FALSE.
Examples
s <- socket()
r <- recv_aio(s, timeout = 10)
call_aio(r)$data
close(s)
r$data == 5L
is_error_value(r$data)
is_error_value(5L)
is_nul_byte(as.raw(0L))
is_nul_byte(raw(length = 1L))
is_nul_byte(writeBin("", con = raw()))
is_nul_byte(0L)
is_nul_byte(NULL)
is_nul_byte(NA)
[Package nanonext version 1.1.1 Index]