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ABAP Keyword Documentation →  ABAP - Reference →  Processing Internal Data →  Character String and Byte String Processing →  Expressions and Functions for Byte String Processing →  bit_exp - Bit Expressions 

bit_exp - Calculation Length

A bit expression has been assigned a calculation length in which the operation is executed.

The calculation length is the length of the longest bit expression operand involved. Differently from the calculation type of an arithmetic expression, the type of the result is not included.

Before the entire expression is evaluated, all operands involved are converted to the length of the longest operand involved based on the rules for the source field type x and xstring. This means that shorter operands are hexadecimally filled with 0 on the right.

The result in the calculation length is handled as follows:

  • If used in the statement COMPUTE, the final result of the entire expression is converted to the length of the data object result based on the rules for source field type x and xstring.
  • If used in logical expressions, the result is used as an operand in the length resulting from the calculation.
  • If used as an actual parameter for input parameters of methods, the final result of the entire expression is converted to the length of the formal parameter based on the rules for source field type x and xstring. If the formal parameter has been typed generically, it is set to the type x in the length determined by the operands.

Other versions: 7.31 | 7.40 | 7.54