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ARTIClE
Lossless Calculations The example demonstrates lossless calculations and the exceptions raised when roundings occur.
ABAP_SOURCE_CODE ABAP_EXEC
ABAP_DESCRIPTION The lossless operator EXACT makes the following calculations and assigns the result to a data object with the type decfloat34: result = number / sy-index result = number * ( 1 / sy-index ) If rounding is not needed, the result result is produced. If roundings are needed, the associated exception CX_SY_CONVERSION_ROUNDING is caught and its attribute VALUE is displayed. The results of lossless calculations are flagged in the display. This example demonstrates how the structure of an arithmetic expression can influence the result of a lossless calculation. For example, the division of the number number by itself is always a lossless calculation; multiplying number by 1 / number, however, raises an exception when a rounding occurs in the division. The following two expressions are further examples where the structure of an arithmetic expression is an influence: result = number * 1 / sy-index result = 1 / sy-index * number The first expression has an effect like number / sy-index and the second like number * ( 1 / sy-index ) (again).
