'And'ing a Byte Value - How?

[Arnold Shore]

Folks, I get a TYPE MISMATCH complaint fm ASP when I do the following in
trying to extract the high-order four bits. The complaint being that the
strTemp value is a string. Well, yes - it's a 1-char string.

NumTemp = MidB(strTemp,1, 1) And &Hf0

What am I doing wrong? (Something dumb, I'm sure, but ... .)

AS

 

[Ray at]

Are you trying to concatenate? Use & instead of And.

Ray at work

 

[Arnold Shore]

No. As I said, I'm trying to extract the HO bits. Thanks,
AS

 

[Chris Hohmann]

Folks, I get a TYPE MISMATCH complaint fm ASP when I do the following in
trying to extract the high-order four bits. The complaint being that the
strTemp value is a string. Well, yes - it's a 1-char string.

NumTemp = MidB(strTemp,1, 1) And &Hf0

What am I doing wrong? (Something dumb, I'm sure, but ... .)

NumTemp = AscB(strTemp) And &HF0

Notes:
1. No need to extract the first character, Asc/AscB/AscW only act on the
first character in a string.
2. Here is the reference page for Asc/AscB/AscW in VBScript:

http://msdn.microsoft.com/library/en-us/script56/html/vsfctasc.asp

HTH-
Chris Hohmann

 

[Arnold Shore]

Yep. Now back to my question: How do I extract the extract the high-order
four bits of a given Byte value?

The logical "And" for that requires a numeric expression, and I have a Byte.

AS

"Chris Hohmann" <hohmannATyahooDOTcom> wrote in message
....

 

[Chris Hohmann]

Yep. Now back to my question: How do I extract the extract the high-order
four bits of a given Byte value?

The logical "And" for that requires a numeric expression, and I have a

Byte.

TypeName(MidB("SomeString",1,1)) => String
TypeName(AscB("SomeString")) => Byte

Did you try the following line?

NumTemp = AscB(strTemp) And &HF0


HTH
-Chris Hohmann