[rcastilla]

Hi,

when I try to make a macro susbtitution in blockMeshDict, like

a 10;

vertices
(
...
($a -$a 0)
...
)

it is not working. It gives the error

wrong token type - expected Scalar, found on line 37 the punctuation token '-'

It works with a code like

($a #calc "-$a" 0)

but I find it very anoying. I am not able to find an easy way to do that. Any suggestion?

Thanks

Robert

[alfiogn]

Very old post, but may be useful to give an answer for who will read.

To make a negative macro you can easily write:
a 1;
ma #neg $a;

and it doesn't need compilation!

[guin]

Originally Posted by alfiogn

Very old post, but may be useful to give an answer for who will read.

To make a negative macro you can easily write:

a      1;
ma    #neg $a;

and it doesn't need compilation!

Right, this works for current OpenFOAM-dev, OpenFOAM-8 & OpenFOAM-7.

In case you are dealing with an older version you may need to do something like this instead (needs runtime compilation):

a        1;
ma      #calc "-$a";

[alfiogn]

Originally Posted by guin

Right, this works for current OpenFOAM-dev & OpenFOAM-8 at least (not sure about OpenFOAM-7).

I'm actually using v7 so it is ok!