Compiler Warning C0426

Message: At least one statement is expected

Possible error cause: A CASE statement contains an empty CASE label.

Error correction: Remove the empty CASE label or add a statement to this CASE label.

Example 476. Example of the warning

PROGRAM PLC_PRG
VAR
      nVar:INT;
END_VAR

CASE nVar OF
      1:
      2:
         nVar := nVar + 1;
END_CASE

The CASE label produces the following warning.

Message:

C0426: At least one statement is expected