RE: [sv-bc] Is the declaration assignment optional for constant declaration

Hi Surya,

 

The full BNF says,

 

data_declaration14 ::=

[ const ] [ var ] [ lifetime ] data_type_or_implicit
list_of_variable_decl_assignments ;

| type_declaration

| package_import_declaration

| virtual_interface_declaration

So you see that following const, you have to have a
variable_decl_assignment.

 

Shalom

 

________________________________

From: owner-sv-bc@server.eda.org [mailto:owner-sv-bc@server.eda.org] On
Behalf Of Surya Pratik Saha
Sent: Monday, May 14, 2007 12:12 PM
To: sv-bc@eda-stds.org
Subject: [sv-bc] Is the declaration assignment optional for constant
declaration

 

Hi,
In SV 3.1 final LRM, the constant declaration syntax was:
constant_declaration ::= const data_type const_assignment ;

So the assignment was must in constant declaration.
But as per 1800 LRM, now the keyword 'const' has become part of data
declaration, which may or may not contain assignment in declaration
time. So is the declaration assignment is optional?
Is the following case valid:

module top;
    const int x; // the assignment is missing
endmodule



-- 
Regards
Surya

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