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This seems to be relevant: http://lists.cs.uiuc.edu/pipermail/cfe-dev/2008-August/002670.html http://lists.cs.uiuc.edu/pipermail/cfe-dev/2008-August/00267... I

by limmeau 17y ago

This seems to be relevant: http://lists.cs.uiuc.edu/pipermail/cfe-dev/2008-August/002670.html http://lists.cs.uiuc.edu/pipermail/cfe-dev/2008-August/00267... In short: per default, you get copies of captured variables, but you can mark variables to be writable from blocks. In order to be able to call a block after the function call where it was created has ended, closures may be copied to the heap (with refcounting).

onedognight 17y ago
The syntax for this is quite nice. call_me(^int (int x, int y) { return x + y; }); I like it quite a bit better than the proposed c++ lambda syntax. [](int x, int y) -> int { return x + y; } The ^ is very ananogous to *. You could declare the above function call_me() with something like this void call_me(int (^fun)(int x, int y)) { fun(fun(4,5), fun(3,6)); } which is quite "C like".