COBCH1661 初期値を指定する必要がある
The PERFORM USING statement must specify an initial value for the USING operand.
COBCH1662 ローカル変数の定義のない、単一表現のみ指定可能である
When using the PERFORM USING statement, multiple operands can be specified provided they are specified as locals within the statement (using AS syntax). If the PERFORM USING references an item that is already declared, then only one such operand is allowed.
COBCH1667 PERFORM 範囲 末尾が先頭に先行する
The overlapping PERFORM range, indicated by the preceding COBCH1664, is a result of the end of the PERFORM range preceding the start of the PERFORM range.
COBCH1668 PERFORM 範囲の段落
The overlapping PERFORM range, indicated by the preceding COBCH1664, is caused by one or more GO TO statements in paragraph “procedure-name1”.