BUG: Non-vector array mess-up

[=?Utf-8?B?Q2hvbGVudA==?=]

Did anyone notice a major bug in vb.net. The clr has two types of 'arrays':
vectors (1 dimensional, 0 based) and other arrays (any base, any dimensions).
In vb.net, you can only declare vectors, not 1-dimensional arrays. But when
you import an assembly, it recognizes all 1-dimensional arrays as vectors,
gets very confused, and creates unverifiable code that has major bugs in it
because it stores 1-dim arrays in vector variables.

[Tom Shelton]

Re: BUG: Non-vector array mess-up

On 2008-04-18, Cholent <Cholent@discus sions.microsoft .comwrote:

Did anyone notice a major bug in vb.net. The clr has two types of 'arrays':
vectors (1 dimensional, 0 based) and other arrays (any base, any dimensions).
In vb.net, you can only declare vectors, not 1-dimensional arrays. But when
you import an assembly, it recognizes all 1-dimensional arrays as vectors,
gets very confused, and creates unverifiable code that has major bugs in it
because it stores 1-dim arrays in vector variables.

This is probably why you can't create a 1-dimensional non-zero based
array in VB.NET. I think it has always been there - in fact, I believe
you can't use 1-dimensional non-zero based arrays from C# either...

--
Tom Shelton

[=?Utf-8?B?Q2hvbGVudA==?=]

Re: BUG: Non-vector array mess-up

I've just wrote the following il code:

int32[...] ArrayCast(class System.Array obj)
{ldarg.0
castclass int32[...]
ret}
If I pass it a 2-dim. array it fails with 'invalidcastexc eption' but if I
pass it a 1-dim, non-0-based array it works! So it seems to be a problem with
the clr as well.

[=?Utf-8?B?Q2hvbGVudA==?=]

Re: BUG: Non-vector array mess-up

"Cholent" wrote:

I've just wrote the following il code:
>
int32[...] ArrayCast(class System.Array obj)
{ldarg.0
castclass int32[...]
ret}
If I pass it a 2-dim. array it fails with 'invalidcastexc eption' but if I
pass it a 1-dim, non-0-based array

Sorry, typo! I meant a vector (1-dim, 0-based0

it works! So it seems to be a problem with
the clr as well.