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Assignments, Calculations, and Other Types of Data Access

An assignment passes the content of a data object, a return value, or a result of a calculation expression to a data object. If the data types are compatible, the content is copied unchanged. If the data types are incompatible and there is a suitable conversion rule, the content is converted. An assignment is usually performed with the assignment operator (=).

A calculation is executed in a calculation expression, which can be specified in an operand position, in particular on the right side of the assignment operator =. If necessary, the result of a calculation expression is converted to the data type of the operand position or of the result of the assignment. In arithmetic expressions, the calculation is executed in a calculation type based on the data types of all operands including the result.

Other versions: 7.31 | 7.40 | 7.54

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Assignments Between Different Types

Avoiding Invalid Values

Using Conversion Rules

Trailing Blanks in Character Literals

Specifying Numbers

Selecting the Numeric Type

Rounding Errors

Dividing by Zero

Casting

Runtime Errors When Accessing Data Objects

Anonymous Containers

Pass by Reference of Global Data