I thought this was going to be straight forward, given the wealth of
conversion functions in .NET, but it is proving more convoluted than
imagined.
Given the following
<code>
Dim ba(1) As Byte
Dim b As Byte
ba(0) = &h4
ba(1) = &h0
b = foo(ba)
</code>
What is foo() such that b contains &h40 ?
TIA
Charles
[I could write an algorithm for this, but there must surely be a succinct
conversion for it]
25  7231 
* "Charles Law" <bl***@nowhere. com> scripsit: I thought this was going to be straight forward, given the wealth of
conversion functions in .NET, but it is proving more convoluted than
imagined.
Given the following
<code>
Dim ba(1) As Byte
Dim b As Byte
ba(0) = &h4
ba(1) = &h0
b = foo(ba)
</code>
What is foo() such that b contains &h40 ?
TIA
Charles
[I could write an algorithm for this, but there must surely be a succinct
conversion for it]
There can be many functions...
\\\
Public Function Foo(ByVal abyt() As Byte) As Byte
Return &H40
End Function
///
SCNR
--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>
Hi Herfried
As I was making coffee I realised my mistake (in the post). It should read
<code>
Dim ba(1) As Byte
Dim b As Byte
ba(0) = &h34
ba(1) = &h30
b = foo(ba)
</code>
Still looking for foo() such that b contains &h40.
Charles
"Herfried K. Wagner [MVP]" <hi************ ***@gmx.at> wrote in message
news:Oc******** *****@TK2MSFTNG P11.phx.gbl... * "Charles Law" <bl***@nowhere. com> scripsit: I thought this was going to be straight forward, given the wealth of
conversion functions in .NET, but it is proving more convoluted than
imagined.
Given the following
<code>
Dim ba(1) As Byte
Dim b As Byte
ba(0) = &h4
ba(1) = &h0
b = foo(ba)
</code>
What is foo() such that b contains &h40 ?
TIA
Charles
[I could write an algorithm for this, but there must surely be a
succinct conversion for it]
There can be many functions...
\\\
Public Function Foo(ByVal abyt() As Byte) As Byte
Return &H40
End Function
///
SCNR
--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>
Correction
Given the following
<code>
Dim ba(1) As Byte
Dim b As Byte
ba(0) = &h34
ba(1) = &h30
b = foo(ba)
</code>
What is foo() such that b contains &h40 ?
TIA
Charles
"Charles Law" <bl***@nowhere. com> wrote in message
news:uy******** ******@TK2MSFTN GP09.phx.gbl... I thought this was going to be straight forward, given the wealth of
conversion functions in .NET, but it is proving more convoluted than
imagined.
Given the following
<code>
Dim ba(1) As Byte
Dim b As Byte
ba(0) = &h4
ba(1) = &h0
b = foo(ba)
</code>
What is foo() such that b contains &h40 ?
TIA
Charles
[I could write an algorithm for this, but there must surely be a succinct
conversion for it]
"Charles Law" <bl***@nowhere. com> schrieb I thought this was going to be straight forward, given the wealth
of conversion functions in .NET, but it is proving more convoluted
than imagined.
Given the following
<code>
Dim ba(1) As Byte
Dim b As Byte
ba(0) = &h4
ba(1) = &h0
b = foo(ba)
</code>
What is foo() such that b contains &h40 ?
TIA
Charles
[I could write an algorithm for this, but there must surely be a
succinct conversion for it]
What if ba(0) or ba(1) > &Hf?
If both are [0; &HF]:
b = ba(0) << 4 or ba(1)
--
Armin
How to quote and why: http://www.plig.net/nnq/nquote.html http://www.netmeister.org/news/learn2quote.html
Hi Armin
Sorry for the confusion, but I think my correction is a bit slow coming
through. I should have written
ba(0) = &h34
ba(1) = &h30
Charles
"Armin Zingler" <az*******@free net.de> wrote in message
news:40******** *************** @news.freenet.d e... "Charles Law" <bl***@nowhere. com> schrieb I thought this was going to be straight forward, given the wealth
of conversion functions in .NET, but it is proving more convoluted
than imagined.
Given the following
<code>
Dim ba(1) As Byte
Dim b As Byte
ba(0) = &h4
ba(1) = &h0
b = foo(ba)
</code>
What is foo() such that b contains &h40 ?
TIA
Charles
[I could write an algorithm for this, but there must surely be a
succinct conversion for it]
What if ba(0) or ba(1) > &Hf?
If both are [0; &HF]:
b = ba(0) << 4 or ba(1)
--
Armin
How to quote and why:
http://www.plig.net/nnq/nquote.html
http://www.netmeister.org/news/learn2quote.html
* "Charles Law" <bl***@nowhere. com> scripsit: Given the following
<code>
Dim ba(1) As Byte
Dim b As Byte
ba(0) = &h34
ba(1) = &h30
b = foo(ba)
</code>
What is foo() such that b contains &h40 ?
There are still thousands of ways to return this result. Do you have
other (input, outpuut) pairs?
--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>
"Charles Law" <bl***@nowhere. com> schrieb Given the following
<code>
Dim ba(1) As Byte
Dim b As Byte
ba(0) = &h4
ba(1) = &h0
b = foo(ba)
</code>
What is foo() such that b contains &h40 ?
What if ba(0) or ba(1) > &Hf?
If both are [0; &HF]:
b = ba(0) << 4 or ba(1)
Sorry for the confusion, but I think my correction is a bit slow
coming through. I should have written
ba(0) = &h34
ba(1) = &h30
Expected result? &H3430?
Dim ba(1) As Byte
Dim s As Short
ba(0) = &H34
ba(1) = &H30
s = CShort(ba(0)) << 8 Or ba(1)
If you can exchange the byte order, this is also possible:
s = System.BitConve rter.ToInt16(ba , 0)
--
Armin
How to quote and why: http://www.plig.net/nnq/nquote.html http://www.netmeister.org/news/learn2quote.html
Thousands? I only need one ;-)
This is currently the only scenario. As a stop-gap, I have
<code>
Dim enc As New Text.ASCIIEncod ing
Return CByte("&H" & enc.GetString(b a))
</code>
which I imagine you will say is as good as any, but prepending "&H" to the
string just seems a bit 'kludgy'.
Charles
"Herfried K. Wagner [MVP]" <hi************ ***@gmx.at> wrote in message
news:u6******** ******@TK2MSFTN GP11.phx.gbl... * "Charles Law" <bl***@nowhere. com> scripsit: Given the following
<code>
Dim ba(1) As Byte
Dim b As Byte
ba(0) = &h34
ba(1) = &h30
b = foo(ba)
</code>
What is foo() such that b contains &h40 ?
There are still thousands of ways to return this result. Do you have
other (input, outpuut) pairs?
--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>
Hi Armin
No. Expected result still &H40.
Unfortunately, I cannot easily change the byte order as these are sent to me
from an external source, as binary coded hex digits.
Charles
"Armin Zingler" <az*******@free net.de> wrote in message
news:40******** *************** @news.freenet.d e... "Charles Law" <bl***@nowhere. com> schrieb > Given the following
>
> <code>
> Dim ba(1) As Byte
> Dim b As Byte
>
> ba(0) = &h4
> ba(1) = &h0
>
> b = foo(ba)
> </code>
>
> What is foo() such that b contains &h40 ?
What if ba(0) or ba(1) > &Hf?
If both are [0; &HF]:
b = ba(0) << 4 or ba(1)
Sorry for the confusion, but I think my correction is a bit slow
coming through. I should have written
ba(0) = &h34
ba(1) = &h30
Expected result? &H3430?
Dim ba(1) As Byte
Dim s As Short
ba(0) = &H34
ba(1) = &H30
s = CShort(ba(0)) << 8 Or ba(1)
If you can exchange the byte order, this is also possible:
s = System.BitConve rter.ToInt16(ba , 0)
--
Armin
How to quote and why:
http://www.plig.net/nnq/nquote.html
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