Subject: [sv-bc] Question about array query functions $size, etc.
From: Paul Graham (pgraham@cadence.com)
Date: Thu Nov 20 2003 - 13:39:26 PST
I have a question about the dimension numbering used for
array querying functions. The LRM gives an example:
// Dimension numbers
// 3 4 1 2
reg [3:0][2:1] n [1:5][2:8];
This is fine for an array whose dimensions are all
written out in the variable declaration.
But what about an array which is composed of typedefs:
typedef [3:0][2:1] reg t1;
typedef t1 [1:5][2:8] t2;
t2 n;
Does n now have two dimensions or four dimensions? I
would vote for four dimensions, since n is equivalent to
a four-dimensional array.
Also, does a predefined vector type count as an array
for the purposes of array numbering?
integer n;
... if ($size(n, 1) == 32) ...
Paul
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