Re: "or" shortcut does not work - but why?
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- Subject: Re: "or" shortcut does not work - but why?
- From: peterhickman <peterhi@...>
- Date: 2007年6月17日 16:58:45 +0100
On 16 Jun 2007, at 4:26 , Luiz Henrique de Figueiredo wrote:
local Result = false; -- you could also use "nil" here
Result = Result or "anything else";
io.stdout:write("Result = '"..tostring(Result).."'");
yields "false" (or "nil", resp.) rather than "anything else"
Perhaps this is related to this bug, which apparently only surfaces in
Windows: http://www.lua.org/bugs.html#5.1.2-2
This could well be the case. The following works fine on OSX
gResult = false or "anything else";
io.stdout:write("gResult = '"..tostring(gResult).."'\n");
local lResult = false or "anything else";
io.stdout:write("lResult = '"..tostring(lResult).."'\n");
local xResult = false;
local tResult = xResult or "anything else";
io.stdout:write("tResult = '"..tostring(tResult).."'\n");
Giving:
gResult = 'anything else'
lResult = 'anything else'
tResult = 'anything else'
For Lua 5.1.2 Copyright (C) 1994-2007 Lua.org, PUC-Rio
--
Genius has its limitations. Stupidity is not thus handicapped.