https://d.puremagic.com/issues/show_bug.cgi?id=11914
Summary: Missed tuple unpacking in foreach for cartesianProduct
Product: D
Version: D2
Platform: x86
OS/Version: Windows
Status: NEW
Severity: regression
Priority: P2
Component: DMD
AssignedTo: [email protected]
ReportedBy: [email protected]
--- Comment #0 from [email protected] 2014-01-13 04:55:25 PST ---
This program compiles:
void main() {
import std.algorithm: cartesianProduct;
foreach (ijk; cartesianProduct([1], [1], [1])) {}
}
This doesn't compile, but it used to compile:
void main() {
import std.algorithm: cartesianProduct;
foreach (i, j, k; cartesianProduct([1], [1], [1])) {}
}
dmd 2.065alpha gives:
test.d(3): Error: cannot infer argument types
If I add both it compiles again:
void main() {
import std.algorithm: cartesianProduct;
foreach (ijk; cartesianProduct([1], [1], [1])) {}
foreach (i, j, k; cartesianProduct([1], [1], [1])) {}
}
(Generally I think this tuple unpacking is a misfeature of D and should be
removed, and replaced by a better and more general solution. But if we want to
remove this feature, it should go through a deprecation path, and not break
randomly as here. So I have marked this as regression).
--
Configure issuemail: https://d.puremagic.com/issues/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
