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Bug 20342 – GDC - assignment to anonymous union member corrupts data

Status: RESOLVED
Resolution: MOVED
Severity: critical
Priority: P1
Component: dmd
Product: D
Version: D2
Platform: All
OS: All
Creation time: 2019-10-31T01:16:02Z
Last change time: 2019-10-31T20:08:17Z
Assigned to: No Owner
Creator: Suleyman Sahmi (سليمان السهمي)

Comments

Comment #0 by sahmi.soulaimane — 2019-10-31T01:16:02Z

``` union U { struct { size_t a; size_t b; union { size_t c; size_t d; } } } void main() { U u; assert(u.a == 0); // ok u.d = 1; assert(u.a == 0); // error } ```

Comment #1 by greeenify — 2019-10-31T05:24:10Z

GDC issues should be reported at the GCC issue tracker: https://gcc.gnu.org/bugzilla/

Comment #2 by sahmi.soulaimane — 2019-10-31T13:35:27Z

(In reply to Seb from comment #1) > GDC issues should be reported at the GCC issue tracker: > https://gcc.gnu.org/bugzilla/ Thanks.

Comment #3 by sahmi.soulaimane — 2019-10-31T19:03:52Z

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92309