InexactError when using `set_mode`

[phykos]

So far, I tried changing mode on pin 1.
This is what I've got.

julia> using PiGPIO

julia> p = Pi()
[ Info: Successfully connected!
Pi("localhost", 8888, true, PiGPIO.SockLock(Sockets.TCPSocket(RawFD(0x00000012) open, 0 bytes waiting), ReentrantLock(nothing, Base.GenericCondition{Base.Threads.SpinLock}(Base.InvasiveLinkedList{Task}(nothing, nothing), Base.Threads.SpinLock(0)), 0)), PiGPIO.CallbackThread(PiGPIO.SockLock(Sockets.TCPSocket(RawFD(0x00000012) open, 0 bytes waiting), ReentrantLock(nothing, Base.GenericCondition{Base.Threads.SpinLock}(Base.InvasiveLinkedList{Task}(nothing, nothing), Base.Threads.SpinLock(0)), 0)), PiGPIO.SockLock(Sockets.TCPSocket(RawFD(0x00000013) paused, 0 bytes waiting), ReentrantLock(nothing, Base.GenericCondition{Base.Threads.SpinLock}(Base.InvasiveLinkedList{Task}(nothing, nothing), Base.Threads.SpinLock(0)), 0)), true, true, 0, 0x00000000, Any[]))

julia> set_mode(p, 1, PiGPIO.OUTPUT)
ERROR: InexactError: check_top_bit(Int32, 4294967255)
Stacktrace:
 [1] throw_inexacterror(::Symbol, ::Type{Int32}, ::UInt32) at ./boot.jl:558
 [2] check_top_bit at ./boot.jl:572 [inlined]
 [3] toInt32 at ./boot.jl:621 [inlined]
 [4] Int32 at ./boot.jl:707 [inlined]
 [5] convert at ./number.jl:7 [inlined]
 [6] _u2i(::UInt32) at /home/g/.julia/packages/PiGPIO/bH87w/src/pi.jl:72
 [7] set_mode(::Pi, ::Int64, ::Int64) at /home/g/.julia/packages/PiGPIO/bH87w/src/pi.jl:356
 [8] top-level scope at REPL[3]:1

julia> set_mode(p, 1, PiGPIO.INPUT)
ERROR: InexactError: check_top_bit(Int32, 4294967255)
Stacktrace:
 [1] throw_inexacterror(::Symbol, ::Type{Int32}, ::UInt32) at ./boot.jl:558
 [2] check_top_bit at ./boot.jl:572 [inlined]
 [3] toInt32 at ./boot.jl:621 [inlined]
 [4] Int32 at ./boot.jl:707 [inlined]
 [5] convert at ./number.jl:7 [inlined]
 [6] _u2i(::UInt32) at /home/g/.julia/packages/PiGPIO/bH87w/src/pi.jl:72
 [7] set_mode(::Pi, ::Int64, ::Int64) at /home/g/.julia/packages/PiGPIO/bH87w/src/pi.jl:356
 [8] top-level scope at REPL[4]:1

[VEZY]

I think it's because Pin 1 is not a GPIO, it is only used to provide 3v3.

[Alexander-Barth]

Yes, you cannot set pin 1 to output mode.
However, there is some issue in the error reporting. The commit 34866ff fixes the problem.
The error message is now (corresponding to PI_NOT_PERMITTED, -41):

julia> set_mode(p, 1, PiGPIO.OUTPUT)
ERROR: no permission to update GPIO
Stacktrace:
 [1] error(s::String)
   @ Base ./error.jl:33
 [2] _u2i
   @ ~/.julia/dev/PiGPIO/src/pi.jl:77 [inlined]
 [3] set_mode(self::Pi, gpio::Int32, mode::Int32)
   @ PiGPIO ~/.julia/dev/PiGPIO/src/pi.jl:364
 [4] top-level scope
   @ REPL[16]:1