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Bug 5949 – Mutable enum matrix rows

Status: RESOLVED
Resolution: INVALID
Severity: normal
Priority: P2
Component: dmd
Product: D
Version: D2
Platform: x86
OS: Windows
Creation time: 2011-05-07T16:08:46Z
Last change time: 2020-09-06T22:17:59Z
Keywords: accepts-invalid
Assigned to: No Owner
Creator: bearophile_hugs

Comments

Comment #0 by bearophile_hugs — 2011-05-07T16:08:46Z

This D2 code compiles and runs with no errors (DMD 2.053beta), but it's wrong: void main() { enum int[][] data = [[1]]; foreach (a; data) a[0]++; assert(data[0][0] == 1); foreach (ref a; data) a[0]++; assert(data[0][0] == 1); }

Comment #1 by lt.infiltrator — 2014-03-19T18:02:42Z

Issue still exists as of v2.065.

Comment #2 by pro.mathias.lang — 2020-09-06T22:17:59Z

The `enum` gives a literal, so the compiler is correct here. The code works as expected. Using `[static] immutable` will give the desired error.