What does "others : begin NO" mean?

[Altera User]

const NO : boolean := false;
activeFlag_x = (others : begin NO);

I know what "(others => '0')" means, but I can't figure out the above?
Is it simply saying 'fill all bits with the repeating bitpattern 'NO'?

 

[Mike Treseler]

Altera User wrote:

const NO : boolean := false;
activeFlag_x = (others : begin NO);

I know what "(others => '0')" means, but I can't figure out the above?

Neither can I.
VHDL has no const class.
'begin' is misused.

Find a better example.

-- Mike Treseler

 

[Jonathan Bromley]

On Sun, 17 Jun 2007 10:53:02 -0700, "Altera User"
<altera_user@nospam.com> wrote:

const NO : boolean := false;
activeFlag_x = (others : begin NO);

I know what "(others => '0')" means, but I can't figure out the above?

It means that either
a) someone has made a few bad keystrokes on a smart text
editor that has keyboard shortcuts for VHDL keywords, or
b) someone has used a badly flawed template file (and yes,
such things do exist), or
c) someone was coding whilst making use of (in Peter Cook's
unforgettable phrase) recreational pharmaceuticals.

I suspect the line should have said

activeFlag_x := (others => NO);

but it's really anyone's guess.

The really interesting question is: how is it that someone
allowed code like this, which has no chance of getting past
any compiler, leak out from their text editor into the wild?
--
Jonathan Bromley, Consultant

DOULOS - Developing Design Know-how
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Doulos Ltd., 22 Market Place, Ringwood, BH24 1AW, UK
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The contents of this message may contain personal views which
are not the views of Doulos Ltd., unless specifically stated.

 

[Mark McDougall]

Jonathan Bromley wrote:

It means that either

(d) Someone is using a pre-processor on their VHDL code.

The really interesting question is: how is it that someone
allowed code like this, which has no chance of getting past
any compiler, leak out from their text editor into the wild?

See above.

(But in truth, I suspect that (a)-(c) are more likely!)

Regards,

--
Mark McDougall, Engineer
Virtual Logic Pty Ltd, <http://www.vl.com.au>
21-25 King St, Rockdale, 2216
Ph: +612-9599-3255 Fax: +612-9599-3266