Constants

Naming Rules

1. Always start with a letter.

2. Only uppercase letters from A to Z.

3. Numbers from 0 to 9.

4. Word separator _.

5. 🐍 Screaming snake case.

   CONSTANT_NAME

6. ❗ If the constant is related to Safety, the name starts with F_:

   F_CONSTANT_NAME

Examples

VAR_CONSTANT
  // ✅ Correct:
  CMD_FFFF_NIL : int := -1; // Null command
  STATE_0_INIT : int := 0;  // Init. state
  PROV_FALSE: bool := false; // Provisional false
  PROV_TRUE: bool := true; // Provisional true
  STATUS_0_DONE: int := 0; // Status 0
END_VAR

VAR_CONSTANT
  // ❌ Wrong:
  cmd_-1_nil : int := -1; // Null command
  State_0_Init : int := 0;  // Init. state
  provFalse: bool := false; // Provisional false
  ProvTrue: bool := true; // Provisional true
  int_status_0_done := int := 0; // Status 0
  ...
END_VAR