lua-users home
lua-l archive

[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index] [Thread Index]

Hi, list.

Here is a Lua pitfall I hadn't come across yet:

$ lua
Lua 5.1.4  Copyright (C) 1994-2008, PUC-Rio
> s="3ef1e50af"
> =tonumber(s, 16)
> return ("0x"..s) + 0

Same with LuaJIT 2. Haven't tried 5.2.

I understand that the reason here is that tonumber() uses strtoul().

But I would say that expected behaviour for tonumber() with base 16 is
to behave identically to the equivalent coersion, provided by the
language. Otherwise, what's the point of using it?