'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]

Re: 'And'ing a Byte Value - How?

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

Ray at work

"Arnold Shore" <ashore@saefern .org> wrote in message
news:uq7R2WejDH A.2140@TK2MSFTN GP09.phx.gbl...[color=blue]
> 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
>
>[/color]

[Arnold Shore]

Re: 'And'ing a Byte Value - How?

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

"Ray at <%=sLocation% >" <myfirstname at lane34 dot com> wrote in message
news:uYZ#hZejDH A.3700@TK2MSFTN GP11.phx.gbl...[color=blue]
> Are you trying to concatenate? Use & instead of And.
>
> Ray at work
>
> "Arnold Shore" <ashore@saefern .org> wrote in message
> news:uq7R2WejDH A.2140@TK2MSFTN GP09.phx.gbl...[color=green]
> > Folks, I get a TYPE MISMATCH complaint fm ASP when I do the following[/color][/color]
in[color=blue][color=green]
> > 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
> >
> >[/color]
>
>[/color]

[Chris Hohmann]

Re: 'And'ing a Byte Value - How?

"Arnold Shore" <ashore@saefern .org> wrote in message
news:uq7R2WejDH A.2140@TK2MSFTN GP09.phx.gbl...[color=blue]
> Folks, I get a TYPE MISMATCH complaint fm ASP when I do the following[/color]
in[color=blue]
> trying to extract the high-order four bits. The complaint being that[/color]
the[color=blue]
> 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 ... .)[/color]

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]

Re: 'And'ing a Byte Value - How?

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" <hohmannATyahoo DOTcom> wrote in message
news:exH1tNfjDH A.2676@TK2MSFTN GP11.phx.gbl...
....[color=blue]
> 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...l/vsfctasc.asp
>
> HTH-
> Chris Hohmann
>
>[/color]

[Chris Hohmann]

Re: 'And'ing a Byte Value - How?

"Arnold Shore" <ashore@saefern .org> wrote in message
news:eBFYYXgjDH A.3732@tk2msftn gp13.phx.gbl...[color=blue]
> Yep. Now back to my question: How do I extract the extract the[/color]
high-order[color=blue]
> four bits of a given Byte value?
>
> The logical "And" for that requires a numeric expression, and I have a[/color]
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

[Mike Florio]

Re: 'And'ing a Byte Value - How?

an example in javascript:

<script language="javas cript">

var a = 255;

alert (a & 0xf0); // should return 240

</script>




"Arnold Shore" <ashore@saefern .org> wrote in message
news:eBFYYXgjDH A.3732@tk2msftn gp13.phx.gbl...[color=blue]
> Yep. Now back to my question: How do I extract the extract the[/color]
high-order[color=blue]
> four bits of a given Byte value?
>
> The logical "And" for that requires a numeric expression, and I have a[/color]
Byte.[color=blue]
>
> AS
>
> "Chris Hohmann" <hohmannATyahoo DOTcom> wrote in message
> news:exH1tNfjDH A.2676@TK2MSFTN GP11.phx.gbl...
> ...[color=green]
> > 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...l/vsfctasc.asp
> >
> > HTH-
> > Chris Hohmann
> >
> >[/color]
>
>[/color]