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Runtime and Load Size in ABAP Release 6.10 ITOC
ABAP_MODIFICATION_NN Restrictions on the Statement STOP
The statement STOP can no longer be used outside of reports or in dynpros called using CALL SCREEN. Such actions previously produced a runtime error or, in rarer cases, a non-traceable program flow.
ABAP_MODIFICATION_NN Addition ON ROLLBACK for Subroutines
The addition ON ROLLBACK is now available for subroutines, similar to PERFORM ... ON COMMIT. This stops FORM routines of this type from being executed until a ROLLBACK WORK or a MESSAGE of type A is raised.
ABAP_MODIFICATION_NN Overwriting of Untyped Field Symbols
Untyped field symbols no longer lose their ready-only status when being read for the first time. Also, the fields <(>%_DUMMY<)> and <(>%_SPACE <)> are now constants.
ABAP_MODIFICATION_NN Number of Global Segments
The number of global segments in the program memory is now unrestricted. Previously, a maximum of 2**15 global segments was allowed.
ABAP_MODIFICATION_NN Passing of c Literals to Numeric Parameters
When passing c literals to parameters of type p, it was previously possible for a number to have more decimal places than the formal parameter. Due to rounding and the associated loss of information loss, the passing of c literals to parameters of types I, INT1, and INT2 also caused problems. For example, the literal '1245.6789' could be passed to a formal parameter of type p DECIMALS 2 or type i, and the rounding was performed in accordance with the associated conversion rule. Now the system ensures that the formal parameter has as large as a fractional portion as required by the literal. In the case of programs without fixed point arithmetic, the size of the fractional portion must be an exact match.
ABAP_MODIFICATION_NN c Literals as Default Values for Parameters of Type p
If, in the case of generic parameters of type p, a c literal is specified as the default value (for example in the form '12.345'), a field of type p with Decimals 0 was created and the literal value converted to this field. This could also result in information loss due to rounding. Now a field of type p is created with as many decimal places as specified in the literal. For example, for a c literal with the value '12.345', a P field with Decimals 3 is created.
ABAP_MODIFICATION_NN Paging Out of the Structure SCREEN
Until now the structure of the data object SCREEN was generated automatically in every program. In ABAP_RELEASE 6.10 this structure description was paged out into the type pool SYSCR. Instead of data NAME type %_CX_SCREEN-Name the code should now be data NAME type SYSCR_SCREEN-NAME
ABAP_MODIFICATION_NN Syntax Revisions in LOOP AT SCREEN and MODIFY SCREEN
The following changes were made to the statements LOOP AT SCREEN and MODIFY SCREEN. To ensure independence from global definitions, the additional variants LOOP AT SCREEN INTO wa and MODIFY SCREEN FROM wa were introduced. LOOP AT SCREEN with an internal table SCREEN defined locally in the program is no longer possible. The following program, previously not terminated until runtime, now produces a syntax error: PROGRAM loop_test. PERFORM test. FORM test. DATA screen TYPE STANDARD TABLE OF spfli. LOOP AT SCREEN. ENDLOOP. ENDFORM.
