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Tip of the Day
Language: Visual Basic
Expertise: Beginner
Oct 1, 1996



Building the Right Environment to Support AI, Machine Learning and Deep Learning

Type Declarations

I define a user-defined type as follow..
Type Complex
   Re As Double
   Im As Double
End Type
I created a function like this...
Function CompAdd( a As Complex, b As Complex ) As Complex
   CompAdd.Re = a.Re + b.Re
   CompAdd.Im = a.Im + b.Im
End Function
I'm now using the Visual Basic 4.0. When I use this function by following by the following statement...
Dim c,d,e As Complex
e = CompAdd( c, d )
the complier always say that variable 'c' is 'ByRef argument type mismatch'. Do you have any suggestion to my problem? Thank you for your kind attention.

You're probably getting the error because the Dim x, y, z as Complex probably isn't working right. Try doing it as individual lines:

Dim c as Complex
Dim d as Complex
Dim e as Complex
That should take care of the problem. Basically, you are telling it to dim c and d as integers, and e as complex. It's a little strange, but I've seen this problem too.
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