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digitalmars.D.bugs - [Issue 8195] New: Segfault when comparing a VariantN to a non-variant type which it holds

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=8195

           Summary: Segfault when comparing a VariantN to a non-variant
                    type which it holds
           Product: D
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: nobody puremagic.com
        ReportedBy: jmdavisProg gmx.com


--- Comment #0 from Jonathan M Davis <jmdavisProg gmx.com> 2012-06-03 21:54:52
PDT ---
This code:

import std.typetuple;
import std.variant;


struct S
{
    int a;
    long b;
    string c;
    real d;
    bool e;
}

private alias TypeTuple!(string,
                         int,
                         S) Types;


alias VariantN!(maxSize!Types, Types) MyVariant;

void main()
{
    auto v = MyVariant(S.init);
    assert(v == S.init);
}


segfaults when it's run. If you change the assertion to

    assert(v == MyVariant(S.init));

then it runs just fine. This appears to only happen when a struct whose size is

= Variant.sizeof is in the list of accepted types.


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next sibling parent d-bugmail puremagic.com writes:
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--- Comment #1 from Jonathan M Davis <jmdavisProg gmx.com> 2012-06-03 22:11:29
PDT ---
https://github.com/D-Programming-Language/phobos/pull/618

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--- Comment #2 from github-bugzilla puremagic.com 2012-06-09 02:32:41 PDT ---
Commits pushed to master at https://github.com/D-Programming-Language/phobos

https://github.com/D-Programming-Language/phobos/commit/52b51cf2dd211e2a2ac8315a2f69f90023d8e595
Fix for issue# 8195.

https://github.com/D-Programming-Language/phobos/commit/7ad1e29d2f601588972a96d7b580511d6597dd6d
Merge pull request #618 from jmdavis/8195

Fix for issue# 8195.

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--- Comment #3 from github-bugzilla puremagic.com 2012-06-09 02:35:10 PDT ---
Commit pushed to master at https://github.com/D-Programming-Language/phobos

https://github.com/D-Programming-Language/phobos/commit/331c6a24c3f7287ceb7dfd38d2d888eae94ad020
Updated changelog for issue# 8195.

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Jonathan M Davis <jmdavisProg gmx.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


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