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Numeric Expression Positions

Numeric expression positions are reading positions in which numeric data objects, constructor expressions, arithmetic expressions, table expressions, and built-in functions, or functional method calls and method chainings whose return value has a numeric data type, can be specified. The following numeric expression positions exist:

• Arguments of functions

• Numeric arguments of string functions

• Numeric arguments of extremum functions

• Counters and positions:

• Operand comp of the statement
  ASSIGN COMPONENT comp OF STRUCTURE

• Operand n of the statement
  DO n TIMES

• Operand sec of the statement
  WAIT UP TO sec SECONDS

• Operand num of the statement
  SHIFT ... BY num PLACES

• Operands bitpos and val of the statement
  SET BIT bitpos ... TO val.

• Operand bitpos of the statement
  GET BIT bitpos ....

• Positions specified in the statements FIND and REPLACE:

• Operands off and len of the statements
  FIND ... IN SECTION ... OF
REPLACE ... IN SECTION ... OF

• Operands lin1, off1, lin2, and off2 of the statements
  FIND ... IN TABLE ... FROM lin1 OFFSET off1 TO lin2 OFFSET off2 ...
REPLACE  ... IN TABLE ... FROM lin1 OFFSET off1 TO lin2 OFFSET off2 ...

• Operands off and len of the statement
  REPLACE SECTION OFFSET off LENGTH len OF ...

• The row number idx specified with respect to a table index when accessing an internal table in the following:

• READ TABLE itab INDEX idx ...

• LOOP AT itab ...FROM idx1 TO idx2 ...

• INSERT itab ... INDEX idx ...

• INSERT LINES OF jtab FROM idx1 TO idx2  ...

• APPEND LINES OF jtab FROM idx1 TO idx2  ...

• MODIFY itab INDEX idx  ...

• DELETE itab INDEX idx  ...

• DELETE itab FROM idx1 TO idx2 ...

Other versions: 7.31 | 7.40 | 7.54

Example

Specifies a built-in function lines( itab ) for specifying the loop passes of a DO loop.

DATA itab TYPE TABLE OF i WITH EMPTY KEY. 

... 

DO lines( itab ) TIMES. 
  ... 
ENDDO.