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ABENGENERAL_EXPRESSION_POSITIONS - GENERAL EXPRESSION POSITIONS

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General Expression Positions

General expression positions are read positions where appropriate data objects, constructor expressions, table expressions, calculation expressions, built-in functions, or functional method calls and method chainings can be specified. The following general expression positions are available:

• Right side of an assignment with the assignment operator =

• Operands of arithmetic expressions and bit expressions

• Embedded expressions in string templates

• Operands of comparison expressions in logical expressions

• Operand of the statement CASE

• Actual parameters for input parameters of methods in meth( ... ), RAISE EVENT, CREATE OBJECT, and RAISE EXCEPTION or THROW in a conditional expression

• Actual parameters for input parameters of function modules in the case of CALL FUNCTION

• Arguments of built-in numeric functions if these are specified in an arithmetic expression

• Reference variable oref of the statement RAISE EXCEPTION oref.

• The operands after the addition WITH TABLE KEY of the statements READ TABLE itab and DELETE TABLE itab

• The operands after the addition WITH KEY of the statement READ TABLE itab

• Work area wa of the following statements:

• APPEND wa TO ...

• INSERT wa INTO ...

• MODIFY ... FROM wa ...

• Expression exp for dynamic sorting at:

• SORT itab BY exp

• Source fields of the statements WRITE and WRITE TO, with the restriction that arithmetic expressions and bit expressions cannot be specified directly but can only be specified as content of embedded expressions in string templates

The type restrictions determined by the operand type apply in the operand positions. For example, no numeric functions can be specified in a bit expression.

Notes

• By specifying functional methods as actual parameters of methods, it is possible to nest method calls in an operand position.

• The three types of calculation expression can be listed as operands of relational expressions, but they cannot be combined in one calculation expression.

Example

Specification of a constructor expressions with the value operator VALUE on the right side of an assignment and of a constructor expression with the reduction operator REDUCE as an input parameter for the method DISPLAY of the class CL_DEMO_OUTPUT.

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