# VHDL155: All deferred constants should be initialized ## Summary ```{raw} html

Reliability	Security	Maintainability	Code attribute	Effort to fix	Tags

LOW	-	-	Intentionality \| Logical	5min	synthesis, do254, linter, simulation, do254-ss7

``` ## Description ```{raw} html

All deferred constants should be initialized.

Noncompliant code example

package fly is
  constant deferred_a : integer; -- deferred constant
  constant deferred_b : integer; -- deferred constant
  constant not_deferred : integer := 12;
end;

package body fly is
  constant deferred_a : integer := 3;
  -- Noncompliant: deferred_b is not initialized
end;

Compliant solution

package fly is
  constant deferred_a : integer; -- deferred constant
  constant deferred_b : integer; -- deferred constant
  constant not_deferred : integer := 12;
end;

package body fly is
  constant deferred_a : integer := 3;
  constant deferred_b : integer := 5;
end;

``` ## Parameters No parameters. ```{raw} html ```