[Issue 8065] New: No way to write function/delegate literals returning ref T
d-bugmail at puremagic.com
d-bugmail at puremagic.com
Tue May 8 03:40:59 PDT 2012
http://d.puremagic.com/issues/show_bug.cgi?id=8065
Summary: No way to write function/delegate literals returning
ref T
Product: D
Version: D2
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: DMD
AssignedTo: nobody at puremagic.com
ReportedBy: gasper.azman at gmail.com
--- Comment #0 from Gašper Ažman <gasper.azman at gmail.com> 2012-05-08 03:42:20 PDT ---
Currently, I (with the help of #D on irc.freenode.net) couldn't find any way to
define a function or delegate literal returning a reference.
our best guess at the syntax was
delegate ref T (params) { body }
or, to be more general,
delegate ATTRIBUTE T (params) { body }
example:
void main() {
auto bar = new int[5];
auto foo = delegate ref int(size_t i) { return bar[i]; };
}
This example fails with the error "basic type expected, not ref".
Note: even if this did work, assigning functions returning ref does not work
properly, so this bug depends on #8064.
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