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danrega
2024-11-06 12:45:45 +01:00
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05_Constructor_Expressions.md
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@@ -1096,22 +1096,12 @@ DATA(methods) = CAST cl_abap_objectdescr(
## COND
- The
[`COND`](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenconditional_expression_cond.htm)
operator is used for either creating a result depending on [logical
expressions](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenlogical_expression_glosry.htm "Glossary Entry")
or raising a [class-based
exception](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenclass_based_exception_glosry.htm "Glossary Entry")
(which is specified within the parentheses after the addition
[`THROW`](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenconditional_expression_result.htm)).
- There can be multiple logical expressions initiated by
`WHEN` followed by the result specified after
`THEN`. If none of the logical expressions are true, you can
specify an `ELSE` clause at the end. If this clause is not
specified, the result is the initial value of the specified or
derived data type.
- Note that all operands specified after `THEN` must be
convertible to the specified or derived data type.
- The [`COND`](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenconditional_expression_cond.htm) operator is used for creating a result depending on [logical expressions](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenlogical_expression_glosry.htm "Glossary Entry")
- It can also be used to raise [class-based exceptions](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenclass_based_exception_glosry.htm "Glossary Entry") or [runtime errors](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenruntime_error_glosry.htm) with the [`THROW`](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenconditional_expression_result.htm) addition.
- Find examples on the `THROW` addition in the [Exceptions and Runtime Errors](27_Exceptions.md) cheat sheet.
- There can be multiple logical expressions initiated by `WHEN` followed by the result specified after `THEN`. If none of the logical expressions are true, you can
specify an `ELSE` clause at the end. If this clause is not specified, the result is the initial value of the specified or derived data type.
- Note that all operands specified after `THEN` must be convertible to the specified or derived data type.
Example:
``` abap
@@ -1166,13 +1156,8 @@ div = COND decfloat34( WHEN num1 <> 0 AND num2 <> 0 THEN num1 / num2
## SWITCH
The
[`SWITCH`](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenconditional_expression_switch.htm)
operator is fairly similar to the `COND` operator and works in
the style of
[`CASE`](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abapcase.htm)
statements, i. e. it uses the value of only a single variable that is
checked in the case distinction.
- The [`SWITCH`](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenconditional_expression_switch.htm) operator is fairly similar to the `COND` operator and works in the style of [`CASE`](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abapcase.htm) statements, i. e. it uses the value of only a single variable that is checked in the case distinction.
- Also here, `SWITCH` can be used to raise [class-based exceptions](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenclass_based_exception_glosry.htm "Glossary Entry") or [runtime errors](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenruntime_error_glosry.htm) with the [`THROW`](https://help.sap.com/doc/abapdocu_cp_index_htm/CLOUD/en-US/index.htm?file=abenconditional_expression_result.htm) addition. Find examples on the `THROW` addition in the [Exceptions and Runtime Errors](27_Exceptions.md) cheat sheet.
Examples: