On Fri, 09 Dec 2011 01:20:45 -0500, Kagamin <s...@here.lot> wrote:

On Thursday, 8 December 2011 at 17:18:57 UTC, Joshua Reusch wrote:

Ahem. So are you suggesting that (a,b) means a tuple
everywhere but in a
for loop, where it is used to separate two statements?

If we use the comma operator only for tuples, there needn't to
be a special case for loops:

for(x, y = 0 , 100; x < y ; x, y += 1,-1) { ... }

for(int x, y = 0 , 100; x < y ; x, y += 1,-1) { ... }

?


Here's how I understood it:

int x,y; // Defined somewhere in the code above

for( (x,y) = (0,100); x < y ; (x,y) += (1,-1) ) { ... }

So you have variable capture, assignment and add-assign happening.

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