BUG: Non-vector array mess-up

  • Thread starter Thread starter Cholent
  • Start date Start date
C

Cholent

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.
 
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.
Click to expand...

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...
 
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 'invalidcastexception' 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.
 
Cholent said:
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 'invalidcastexception' but if I
pass it a 1-dim, non-0-based array
Click to expand...
Sorry, typo! I meant a vector (1-dim, 0-based0
 
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