On Sat, Jul 7, 2012 at 11:56 AM, dcharno <dcharno@comcast.net> wrote:
On 07/07/2012 10:06 AM, Alexandre Rion wrote:
s=0; k=0
grade="Ann 57, Bob 64,Cat 77, Don 62, Eve 51"
for n in grade:gmatch("%d+") do s=s+tonumber(n); k=k+1 end
print(s/k)
It's the same, it is easy, and it is clearer for people to understand your
code. -> + 10.000 points
You can already do this in your code if you wish, so what's the point of
changing the language at this stage? Will it make Lua noticeable faster or
smaller? Doubtful.
Yes. Roberto already explicitly said it would simplify the code
(making Lua smaller) and reduce checks in critical code paths (making
Lua faster). Even if you're already using tonumber(s), the + operator
still has to check to see if the coercion is necessary -- this check
could be removed if it could just error out if lua_type doesn't return
LUA_TNUMBER.
