Insane Object CIN

[Christoph_Klein]

Using MS Visual C 6.0 and Labview 5.01f I'm trying to
write a little C program for a CIN with a 1d-array in
it.

I've had a look for examples but I either found none with 1d-arrays or the examples were not complete and
wouldn't work or even compile.
So I took a sample of code by (labview's?) A. Rafiq and
tried to complete it (Source attached).

Code will compile, if I try to write into the array the
vi will crash. If I don't I get an array of set length
(i.e. 100) but trying to save my vi with the fresh
loaded CIN will get me an "insane object" error 🙂

Where did I go wrong?

Please, if anyone should bother to answer: Could You
provide me with both code examples for READING and
WRITING into arrays within CINS?

The problem OF C
OURSE not being a labview but rather a
C-problem ... I know, I know ... (it's the handlers and
the pointers that are scaring me ... off ).

Christoph Klein

[CoastalMaineBird]

You're better off using NumericArrayResize - let LabVIEW handle the details - it would have caught your mistake.

Your example sizes the array large enough for 100 integers (404 bytes) and sets the dimSize to 100. But the prototype says that LabVIEW is expecting float64s. You told it there were 100 in the array, but the memory (804 bytes) wasn't there.