Constant definition

[Lurc]

Dear all,

From forum, I found some constants definition like
Const ERROR_SUCCESS = 0&
Const ERROR_BADDB = 1009&

I wonder what is the meaning for sign & here?

 

[Beth Massi [Architect MVP]]

That's some pretty old looking code. The & and % characters can be used as
type characters for Long and Integer (respectively). VB.NET includes them
only for historical purposes and their use is discouraged. You should
declare your variables instead:

Const ERROR_SUCCESS As Long = 0
Const ERROR_BADDB As Long = 1009

If you need to use a Long literal in code, use "L" instead of "&". (i.e.
123L)

 

[Lurc]

Many thanks, Beth.

--
Best regards,
RL

That's some pretty old looking code. The & and % characters can be used as
type characters for Long and Integer (respectively). VB.NET includes them
only for historical purposes and their use is discouraged. You should
declare your variables instead:

Const ERROR_SUCCESS As Long = 0
Const ERROR_BADDB As Long = 1009

If you need to use a Long literal in code, use "L" instead of "&". (i.e.
123L)

 

[Stephany Young]

Remember Beth that a Long in VB6 is an Integer in VB.Net and that an Integer
in VB6 is a Short in VB.Net.

Const ERROR_SUCCESS As Integer = 0
Const ERROR_BADDB As Integer = 1009

 

[Beth Massi [Architect MVP]]

Since the question was posted on a VB.NET forum I figured the code in the
original question was VB.NET, not VB6.

 

[Herfried K. Wagner [MVP]]

From forum, I found some constants definition like
Const ERROR_SUCCESS = 0&
Const ERROR_BADDB = 1009&

I wonder what is the meaning for sign & here?

In addition to the other replies:

Visual Basic Language Specification -- 2.2.1 Type Characters
<URL:http://msdn.microsoft.com/library/en-us/vbls7/html/vblrfVBSpec2_2_1.asp>

Visual Basic Language Concepts -- Type Characters
<URL:http://msdn.microsoft.com/library/en-us/vbcn7/html/vbconTypeCharacters.asp>