ILE COBOL Language Reference
Expressions calculate values which can then be used as operands in
conditional and arithmetic statements. Arithmetic expressions are built
up from operands and operators under a strict hierarchy and precedence.
In general, any arithmetic expression can be:
- An elementary numeric item such as:
- A numeric literal (integer or decimal)
- An identifier describing an elementary numeric item
- The figurative constant ZERO (ZEROS, ZEROES)
- Numeric functions
- An arithmetic expression surrounded by parentheses
- An arithmetic expression preceded by a unary operator (+, -)
- Two arithmetic expressions separated by a binary arithmetic operator (+, -, *, /,
**)
Identifiers and literals appearing in arithmetic expressions must represent
either numeric elementary items or numeric literals on which arithmetic may be
performed.
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