http://bugzilla.gdcproject.org/show_bug.cgi?id=226
Bug ID: 226
Summary: Union alignof is less than the alignof for each of its
fields
Product: GDC
Version: 5.x
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: Normal
Component: gdc
Assignee: ibuc...@gdcproject.org
Reporter: thomas.bock...@gmail.com
On linux, this will:
FAIL with GDC targeting x86.
PASS with GDC x86_64, DMD x86, DMD x86_64, LDC x86, and LDC x86_64.
This may be a front end bug, as the Phobos auto tester failed a similar test
for me with DMD on another OS - BSD I think? I can't reproduce that right now
though, so I thought I'd start by filing with the GDC project.
---
import std.algorithm : max;
union Foo(A, B)
{
A a;
B b;
static assert (typeof(this).sizeof >= max(A.sizeof, B.sizeof));
static assert (typeof(this).alignof >= max(A.alignof, B.alignof));
}
void main()
{
Foo!(double, ulong) foo;
}
---
(Apologies if this behaviour is by design; I tried asking on D.learn, but got
no replies: http://forum.dlang.org/thread/raiyuiefwsrlqlygo...@forum.dlang.org
)
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