mail-archives/mono-osx/2011-May/004295.html

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<H1>[Mono-osx] fixed in unsafe structs</H1>
<B>oleg z</B>
<A HREF="mailto:mono-osx%40lists.ximian.com?Subject=%5BMono-osx%5D%20fixed%20in%20unsafe%20structs&In-Reply-To="
TITLE="[Mono-osx] fixed in unsafe structs">ru.zelyony at gmail.com
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<I>Sun May 1 06:20:33 EDT 2011</I>
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<PRE>//***************************************************************************
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
namespace ConsoleApplication1
{
public unsafe struct SomeType
{
public int i1, i2, i3;
//public fixed int vec[10];
public fixed long vec[10]; // got a SIGABRT
}
class Program
{
static unsafe void Main( string[] args )
{
var c = new SomeType();
var c2 = new SomeType();
Console.WriteLine( &quot;sizeof={0}&quot;, Marshal.SizeOf( c));
c.i1 = c2.i1 = 10;
c.i2 = c2.i2 = 8;
c.i3 = c2.i3 = 1;
c.vec[0] = c.vec[5] = c.vec[9] = c2.vec[0] = c2.vec[5] =
c2.vec[9] = 123;
Console.WriteLine( &quot;{0} {1} {2} {3} {4} {5} {6} {7}&quot;, c.i1,
c.i2, c.i3, c.vec[0], c.vec[5], c.vec[9], c.vec[3], c.vec[7] );
Console.WriteLine( &quot;{0} {1} {2} {3} {4} {5} {6} {7}&quot;, c2.i1,
c2.i2, c2.i3, c2.vec[0], c2.vec[5], c2.vec[9], c2.vec[3], c2.vec[7] );
Console.ReadLine();
}
}
}
//***************************************************************************
compile with unsafe context ON console app
this code is work incorrectly in MonoFramework 2.10.1.3 sizeof(c) == 24
(valid 52), and memory(c2) is rewritten from c
in MonoFramework 2.10.2.5.4 (MDK) code with INT work correctly
BUT I've got SIGABRT in runtime for LONG arrays (uncomment line in struct
definition)
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