* Stroustrup et al. propose to introduce "lambda closures" in C++
@ 2006-03-17 10:07 Eijiro Sumii
0 siblings, 0 replies; only message in thread
From: Eijiro Sumii @ 2006-03-17 10:07 UTC (permalink / raw)
To: Caml List; +Cc: Eijiro Sumii
Hi,
A friend of mine informed me of this report
Lambda expressions and closures for C++
Jeremiah Willcock, Jaakko Jarvi, Doug Gregor, Bjarne Stroustrup,
Andrew Lumsdaine
2006-02-26
http://public.research.att.com/~bs/N1968-lambda-expressions.pdf
and I thought you might be interested. (I searched a little and
didn't find any discussion on this report in this list.)
A few highlights:
----------------------------------------------------------------------
We propose to extend the C++ language with lambda expressions, and
define the semantics of these unnamed local functions via translation
to closures: function objects implemented using local classes.
...
void f() {
int sum = 0;
for each(a.begin(), a.end(),
<>(int x) -> int extern(sum) {return sum += x;});
}
...
2.1 Omitting the return type
The return type of a lambda expression can be omitted if the body
of the lambda function contains at most one return statement.
----------------------------------------------------------------------
Enjoy:-),
Eijiro
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