Lua print arguments, Lua

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--lua 5.3

-- Actually defined in C, but essentially is:
print_log_c=function(x)
  if type(x)=="string" then io.write(x) end
end

function logprint(...)
  local args={...}
  for i=1, #args do print_log_c( ''..(args[i] or 'nil') ) end
end -- logprint()

print ("Hello, World!")

logprint("1",2,"\n")
logprint("1",2,nil,"\n")
--logprint("1",2,nil,{},"\n") -- attempt to concatenate a table value
--logprint("1",2,nil,true,"\n") -- attempt to concatenate a boolean value
--logprint("1",2,nil,function() end,"\n") -- attempt to concatenate a boolean value
--logprint("1",2,nil,coroutine.create(function() end),"\n") -- attempt to concatenate a thread value
-- same for userdata, probably
logprint("1",2,nil,3,"4","\n") -- is this guaranteed to work? See https://www.lua.org/manual/5.1/manual.html#2.5.5 .
logprint(nil,"1",2,nil,3,"4","\n") -- is this guaranteed to work? See https://www.lua.org/manual/5.1/manual.html#2.5.5 .

logprint=function(...) 
  for i=1,select("#",...) do print_log_c(tostring(select(i,...))) end 
end

logprint("1",2,"\n")
logprint("1",2,nil,"\n")
logprint("1",2,nil,{},"\n")
logprint("1",2,nil,true,"\n")
logprint("1",2,nil,function() end,"\n")
logprint("1",2,nil,coroutine.create(function() end),"\n")
logprint("1",2,nil,3,"4","\n")
logprint(nil,"1",2,nil,3,"4","\n")

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